Tag: 上海水磨娱乐会所

Unrepentant Pellegrini praises Man City youngsters

first_imgManchester City boss Manuel Pellegrini praised his young players after their 5-1 defeat at Chelsea in the FA Cup.Pellegrini fielded a vastly under-strength team, giving full debuts to five players in the fifth-round clash at Stamford Bridge.And they caused some problems for Chelsea before the hosts scored four times in the second half to clinch a quarter-final place.“In the first half we played very well and it was a very tight game,” Pellegrini said. “We played with six young players and I’m very happy with them.“It is important for young players to take their chance when they play, and I was very happy with that.“Unfortunately for us, in five minutes we threw away what we did and at 3-1 it was very difficult.“It is never good to lose 5-1, so I am not so happy about that. But there were a lot of positives.”Pellegrini, whose team play Dynamo Kiev in the Champions League on Wednesday, was unrepentant when asked about his team selection.“I always take the best decision for the club,” he said.See also:Hiddink praises players after Chelsea winChelsea thrash City to reach quarter-finalsChelsea v Man City player ratings’World class’ Hazard suffered dip in confidence – CahillFollow West London Sport on TwitterFind us on Facebooklast_img read more

‘Basic Four’ recommit to climate agenda

first_img26 January 2010Ministers from the “Basic Four” countries – South Africa, India, China and Brazil -have affirmed their commitment to work together for an agreed outcome at the United Nations Climate Change Summit in Mexico later this year.It follows up on the summit that was held in Copenhagen last month, where South Africa was represented by Water and Environmental Affairs Minister Buyelwa Sonjica.Sonjica was one of the ministers who met in New Delhi on Sunday to evaluate the inroads that were made in Copenhagen while also preparing for the Mexico round of talks.“The ministers underscored the centrality of the climate change framework process and the decision of the parties to carry forward the negotiations on the two tracks of ad hoc working group on long-term cooperative action,” read a statement issued by the group.They reiterated that all negotiations must be conducted in an inclusive and transparent manner.Setting bold targetsWhile the Copenhagen accord produced political commitments to mitigate climate change by some leaders, rich nations were slammed for their failure to set bold targets on greenhouse gas emissions.The members of the Basic Four group have already announced a series of voluntary mitigation actions for 2020 and have expressed their intention to communicate information on their voluntary mitigation actions to the United Nations Framework Convention on Climate Change (UNFCCC) by January 31.They also called for the early flow of the pledged US$10-billion in 2010 with focus on the least developed countries, small island developing states and countries of Africa, as proof of their commitment to urgently address the global challenge of climate change.The four ministers expressed hope of a successful conclusion of ongoing negotiations leading to Mexico.‘Show of commitment’The World Wide Fund for Nature (WWF) described the group’s early lead on continuing climate negotiations as a show of commitment shown by the countries to a fair and effective UN-based outcome to climate change this year.“South Africa is standing by its commitment to negotiate a multilateral agreement as part of the Africa Group and to maintain the two-track process under the UNFCCC,” said the organisation’s Richard Worthington.SAinfo reporter and BuaNewsWould you like to use this article in your publication or on your website?See: Using SAinfo materiallast_img read more

New equipment for Gauteng hospitals

first_img22 June 2012 Chris Hani Baragwanath Academic Hospital in Soweto, south-west of Johannesburg, was the first to benefit from a project to replace deteriorating electro-mechanical equipment in health facilities across South Africa’s Gauteng province. Gauteng Infrastructure MEC Bheki Nkosi visited Chris Hani Baragwanath on Thursday to inspect the newly replaced laundry equipment at the hospital. “Electro-mechanical equipment is central to the functionality of health facilities and the creation of a habitable healing environment,” Nkosi said. The Gauteng Department of Infrastructure Development embarked on the project last year, and was allocated R57-million for construction and R296-million for maintenance for 2012/13. The project includes the replacement and refurbishment of boilers, lifts, laundries, chillers, autoclaves, electrical reticulation and change-over switches of generators which have exceeded their life-span. The first phase of the project included the upgrading of the laundry at Baragwanath, which was recently completed at a cost of R16.5-million. With the new tumble dryer, iron liner and two roller ironers, the 2 880-bed hospital is now able to complete the washing and ironing of 1 200 sheets per hour – an improvement on the 450 sheets completed by the old machines. The new laundry equipment will also service other clinics in the Soweto, Vaal and Roodepoort areas, as well as forensic pathology units. It will also service the soon- to-be-completed Jabulani District Hospital. “We are very happy because the hospital is now able to handle the speed of the load, it is also of high quality and will ensure savings on energy, water and detergents,” Nkosi said. He added that the process of bringing the new technology to hospitals was being rolled out phase by phase. Other hospitals that will benefit include the Charlotte Maxeke, George Mukhari, Jubilee, and Helen Joseph hospital. Source: BuaNewslast_img read more

No fresh violence reported in Shillong

first_imgA week after clashes broke out between local Khasi people and Sikh community members, life in Shillong is gradually returning to normalcy with no fresh violence reported from anywhere in the city prompting authorities to relax the daytime curfew. The capital of Meghalaya was gripped by violence since May 29 following an altercation between Sikh residents in the city’s Punjabi Lane area and Khasi drivers of State-run buses. More than 10 people, including policemen and CRPF personnel, were injured in the clashes. As in past two days, curfew was relaxed for nine hours in the 14 “vulnerable areas” from 7 a.m. to 4 p.m. today. Authorities will decide on further relaxation of curfew, Deputy Commissioner, East Khasi Hills, P.S. Dkhar said.last_img read more

Environmental assessment overhaul tanker ban bills face final vote in Senate

first_imgOTTAWA — The Liberal government’s push to make climate change impacts part of the assessment process for new national resource projects faces its final hurdle today.Bill C-69 is back in the Senate for another vote after the House of Commons rejected more than half of the 200-plus amendments proposed by the upper house.Also back in the Senate facing its final decision is Bill C-48, which imposes a ban on oil tankers off the northern coast of British Columbia.The two bills have become a flashpoint between the Liberals and Conservatives over how Canada can protect the environment without driving away investment from the fossil fuel sector.The unelected Senate has generally voted to accept the will of the elected House of Commons when there is a dispute between the two parliamentary chambers about legislation.The bills are expected to be fodder for both major parties on the campaign trail to this fall’s election.The Canadian Presslast_img read more

Why this summer might be a test for the Texas electric grid

Credit: University of Texas at Austin Explore further This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Summer is fast approaching here in Texas, and even if it is a mild one, it will be hot. Once again we’ll walk from our air-conditioned houses to our air-conditioned cars to our air-conditioned parking garages to our air-conditioned places of work. Americans ramp up use of solar, wind energy Provided by University of Texas at Austin Citation: Why this summer might be a test for the Texas electric grid (2018, April 30) retrieved 18 July 2019 from https://phys.org/news/2018-04-summer-texas-electric-grid.html All that AC comes at a cost, however. A big cost. During the hottest parts of the summer, nearly 50 percent of the total output from all power plants in Texas goes toward powering air conditioners. About this time each year, some people question whether the Texas grid will be able to supply the power we need to get through another tortuous summer. This year, some are worrying more than wondering.There is a lot of change happening right now: coal plants retiring, solar panel tariffs delaying solar projects, constrained capacity leading to higher prices. Should we be concerned about it? Maybe, maybe not. Coal is on the decline in Texas. There is not a single new coal plant under construction. Certain environmental regulations make it more difficult to build new ones, but we wouldn’t be building them even if those regulations didn’t exist. In fact, we are moving the opposite direction and retiring a significant portion of the Texas coal fleet. The average coal plant in Texas is more than 30 years old, and many in the fleet were built in the 1970s. Some are likely to soon need substantial capital investment just to keep running. Other technologies available today—natural gas and wind—have established themselves as lower-cost options. In fact, some of the biggest coal utilities in Texas are heavily invested in these new cheaper and cleaner alternatives. Just as the Texas summer is inevitably on its way, so is Texas solar. The grid is expecting to triple the amount of large-scale solar during the next few years. A few projects might be delayed because of the solar tariffs that President Donald Trump has imposed, but the overall effect will be minimal, perhaps raising the cost of solar electricity by one-tenth of a penny.The prime locations for wind and solar in Texas are out west, with the best wind near Lubbock and the best solar close to Big Bend. Lucky for Texas, the state completed a massive transmission line project in those areas a few years ago. In doing so, it allowed us to build so much wind that we now rank No. 1 in the U.S., and No. 7 in the world, in terms of overall renewable energy production. Recent coal plant retirements mean that supply will go down, and thanks to our booming Texas economy, electricity demand will be up. Our modeling projects higher yearly average prices this year but also show that trend reversing next year, as more wind and solar come on line. So, high prices shouldn’t be a long-term problem. In fact, prices have been at historical lows for years because of the low cost of natural gas, and, to a lesser extent, large amounts of wind.Long term, the era of large centralized power plants appears to be drawing to a close. The market is changing, and other technologies—such as wind and solar, and soon, energy storage—are lining up to play every larger roles.This summer might be the toughest test our grid has faced in a while, but early analysis indicates we will get by. The high prices will send a signal to the market for what kinds of resources need to be developed, and that is how the market is supposed to work: out with the old and inefficient, and in with the new. read more

Crash test dummies based on older bodies could reduce road fatalities

first_imgEurope’s population is ageing rapidly, yet the majority of car safety equipment is tested using dummies modelled on people under the age of 65. Now researchers are developing vehicles and equipment designed specifically for the physical attributes and abilities of older bodies. When looking at the bare statistics, Europe’s roads seem to be getting safer. Over the past seven years, the overall number of road fatalities has gone down by 20%, yet, at the same time, the proportion of older people injured or killed on the roads has risen. With the percentage of people over the age of 80 expected to increase to almost 30% by 2080, this high rate of road accidents involving older people is likely to become a growing problem.But safety testing by the automotive industry currently does not take into account the distinct physical differences older drivers tend to have compared to those who are younger. Crash test dummies stand in for human drivers and passengers in safety tests are usually based on people between the ages of 20-65 years old.This means that many devices and pieces of equipment designed to make cars safer are potentially unable to provide optimal protection for a group of people who currently account for almost a fifth of the population in Europe.But a project called SENIORS is hoping to tackle this problem by developing a crash test dummy that perfectly replicates the bodies of older people.’There’s bone differences, geometric differences and weight differences, so restraint systems really need to be adapted for older people to protect them better,’ said Mark Burleigh of crash test dummy manufacturer Humanetics Europe and design engineer for SENIORS. ‘Their muscles aren’t as strong, and they move in different ways before and during an accident.’Organ positionsTo create their senior citizen crash test dummy, Burleigh and his colleagues collected data to determine the statistically average person, and scanned the bodies of real people. MRI scans were used to further determine organ positions. Provided by Horizon: The EU Research & Innovation Magazine Explore further They then combined this information to create a 3-D-printed replica of a 70-year-old woman with a BMI of 29 and 1.61m in height, representing the average traits of the older people most commonly injured in road accidents. The dummy is currently being used for research, but Burleigh and his team hope that in the future it will be a requirement that all cars are tested using their dummy.Adria Ferrer, of multinational engineering firm Applus+ IDIADA, who is the project manager for SENIORS, said: ‘We are protecting younger people better than older people at the moment. If you look at the rate in elderly fatalities, you can see that it is increasing, and the safety systems installed in the vehicles must be able to provide the same protection to older and younger people.’The project is also testing seatbelts that are specifically designed to protect the older body. The most commonly seen injuries in older motorists and passengers are in the chest, so the researchers looked at creating new kinds of seatbelts to prevent this.Generally, seatbelts are designed to follow the skeletal bone structure of the wearer, resting along the clavicle, ribs and the pelvis bones. In the event of an accident, the belt will put pressure on the bone, which will resist that pressure without causing internal damage. However, in overweight older people the belt can sit on the belly instead, and in the event of an accident will put pressure on their soft abdomen. One design the SENIORS team are investigating uses two straps criss-crossing over the body. They are also examining the effects of load limiters – devices used in most seatbelts to minimise injuries caused by the webbing – with different restraint systems to see what would work best for an older person’s body, without compromising on protection for everybody else.’The challenge is to make vehicles safer for older people while maintaining the high level of safety for younger people,’ said Ferrer. ‘The same seatbelt must be able to protect an 18-year-old football player, who is sporty and physically fit, and a 70-year-old.’Everyday drivingBut the physical differences that separate older people from the rest of the population are not just important in the event of an accident – they can also inhibit everyday driving. As people get older, their eyesight and hearing become poorer, they have slower reactions to unexpected incidents and they cannot move as nimbly as a younger driver. To date, many systems in a car are not developed with older users in mind, and those people will often quit driving, limiting their independence.’Ergonomic design studied in collaboration with senior drivers is key,’ said John Reiner, director of public-funded research projects for German company Infineon Technologies. ‘We have to implement technologies to compensate for the fact that younger drivers have better physical abilities and can move more easily, and also are less scared in stressful traffic situations.’He coordinates a project called SILVERSTREAM, which has developed an electric car that caters to the unique needs of older drivers. Comfort is vital, according to Reiner, as even getting into a car can be a painful experience.To address this, the SILVERSTREAM car has a front passenger seat that rotates around its centre and exits the car, coming to rest facing the driver. They can then sit into it with ease, without having to bend and twist their bodies. Once a person is sitting in the seat, it rotates and re-enters the vehicle.The boot of the car contains a crane-lift device to help motorists load heavy items. ‘As you become older, you need to have a little bit more comfort to get seated into the car, you want to carry your bags easily if you go shopping, said Reiner. ‘The car allows you to live your normal life, you can visit your friends and run your household.’DashboardInstead of a ream of buttons bristling from the dashboard, the car also has a system that allows the driver to make hand gestures to interact with the onboard computer. It means the driver can simply wave in the air instead of reaching out to push tiny buttons or prodding and pulling switches.To reduce cognitive stress for the driver, it also includes only the barest essentials – providing the needed control information, but avoiding features like Bluetooth connectivity and USB chargers. According to the research carried out by the SILVERSTREAM team, older drivers don’t use the majority of such gadgets. By eliminating them, the price of the car can be reduced, and the aim of SILVERSTREAM is to have the car on the market for an affordable price – in the range of €8,000 – by 2021. When do problems with memory and decision-making affect older adults’ ability to drive? This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Because safety needs change as drivers’ bodies age, researchers have created a new type of crash test dummy based on people over the age of 65. Credit: Calspan Corporation, National Highway Traffic Safety Administration, licensed under public domain Citation: Crash test dummies based on older bodies could reduce road fatalities (2018, June 11) retrieved 18 July 2019 from https://phys.org/news/2018-06-dummies-based-older-bodies-road.htmllast_img read more

Adding satnav to turn power grids into smart systems

first_img“The power distribution system was never built to handle these technologies,” he adds. “It’s a big concern among electric companies that power is being taken in and out in ways that the grid was not designed to do.”The Enersyn project is developing a standardised monitoring platform for subsystems and power lines, designed to take snapshots of electricity current and voltage some hundred times per second when brief power surges occur – anomalies that might not cause problems in their own right but could be early clues of more serious issues. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Four years ago an apparent fire from nowhere forced the evacuation of 5 000 people from central London. Thick black smoke and choking fumes emerged from manhole covers as power was cut off to the Holborn neighbourhood. The local London Underground station was shuttered, along with West End theatres and law courts.This 36-hour blaze at the start of April 2015 was eventually traced to faulty electrical cables in an underground tunnel, which went on to damage an adjacent gas pipe. In the event, firefighters had to borrow a bomb disposal robot from Scotland Yard to pinpoint the fire’s source.”Power grids are still operated in a very traditional way,” comments David Brain of UK company Powerline Technologies, participating in a new ESA project called Enersyn.”There is literally no instrumentation in most local low-voltage substations – the first time a distribution company knows about a power outage is when a customer rings them up. And there are more than a million of these substations across the UK alone.”Making this lack of data an urgent issue is the fact that more is being asked of power grids than ever before. The traditional uni-directional electricity flow from power generating plant is no longer the case, in favour of a ‘smart grid’ model where consumers can also generate power with household solar panels or wind turbines – and unprecedented power flows are required for items such as electric vehicles. Citation: Adding satnav to turn power grids into smart systems (2019, May 7) retrieved 17 July 2019 from https://phys.org/news/2019-05-adding-satnav-power-grids-smart.html Explore further Provided by European Space Agency Key to making Enersyn work is a resilient timing source for monitoring, enabling accurate time stamping of the data the system gathers, to capture a truly accurate snapshot for follow-up data analysis.The shoebox-sized sensors recording waveform data will therefore make use of multiple timing sources, combining satellite navigation signals – precise to a matter of a few billionths of a second thanks to atomic clocks in space and a world-spanning ground segment for error detection and correction – backed up by signals from the UK’s terrestrial eLoran (short for Low-frequency, enhanced Long-Range Navigation) longwave radio system which could also be relayed underground as required, plus additional sources including national broadcaster BBC Radio 4.Having completed a prototype timing unit, the Enersyn consortium is now developing machine learning algorithms and designing monitoring sensors. This project is supported through ESA’s Navigation Innovation and Support Programme (NAVISP), applying ESA’s hard-won expertise from Galileo and Europe’s EGNOS satellite augmentation system to new satellite navigation and – more widely – positioning, navigation and timing challenges.”We’re building on a previous project looking at the application of machine learning and signal processing techniques to power grid data, to provide electrical distribution companies with the fullest possible situational awareness,” explains David. “We want to provide a fine-grain picture that can then be analysed in various different ways, taking a multi-application platform model, equivalent to the way your smartphone works.” Underground fire in central London. Credit: Merlin Fox The Enersyn project is developing a standardised monitoring platform for subsystems and power lines, designed to take snapshots of electricity current and voltage some hundred times per second when brief power surges occur – anomalies that might not cause problems in their own right but could be early clues of more serious issues. Credit: Powerline Technologies The April 2015 fire in Holborn, central London, was eventually traced to to faulty electrical cables in an underground tunnel, which went on to damage an adjacent gas pipe. Credit: Camden Council Hybrid electricity system would reduce rates, improve service An ESA-backed project is harnessing satnav to insert an intelligent sense of place and time to power grids, to provide early warning of potentially dangerous electricity network failures.last_img read more

Passenger planes need enough cabin crew to operate all the exits in

first_imgThe crash of Aeroflot flight SU1492 in Moscow raises concerns about cabin safety in terms of the number of crew needed in an emergency. Explore further But such aircraft can have four main cabin doors that can be used as emergency exits in the case of an accident.So now on those aircraft there is one door, front or rear dependent on airline procedures, without a cabin crew member stationed at it to operate the door and control the evacuation there in an emergency.The airline procedures assign responsibility for operation of that door and the one on the opposite side of the cabin to the one cabin crew member.In my opinion this is a serious reduction in safety. There is little doubt that in an emergency of the type suffered by the Sukkoi Superjet, the one cabin crew member would have no hope of operating two exits with the passengers panicking and pressing to get out.Lives at risk?I believe lives will be lost in future because of the rule changes.Consider an aircraft operating in Australia that had between 100 and 149 seats – under the current rules it would have only three flight attendants.If a similar accident to that of the Aeroflot aircraft happened, the two rear exits would be blocked by fire. (The flight attendant at the rear of the crashed aircraft reportedly died trying to carry out their duties at the rear exits. If there had been only one cabin crew member stationed at the front of the aircraft, not an unusual circumstance now, it is very possible that only one forward exit would be promptly opened. That would seriously impact the number of passengers who would escape through the one exit before the cabin was fully involved in the fire with smoke and flames?The Sukkoi accident shines a light on the decisions that were made at the time of the Australian rule changes.The rules need to be changed again to mandate a cabin crew member for every floor level exit. So in a 100 to 149 seat aircraft with four entry/exit doors, the minimum cabin crew complement would be four, not three.Then the 1/50 ratio could then apply for any extra cabin crew once all floor level exits are staffed.In my opinion this rule change is need internationally, not just in Australia. The International Civil Aviation Organisation needs to act, before more lives are lost. The argument made by those advocating for change from 1/36 to 1/50 was that certification by the regulatory authority in the country of aircraft manufacture required a full evacuation demonstration to be successfully carried out by that manufacturer.The demonstration had to prove that a full complement of passengers and crew could successfully evacuate the aircraft in 90 seconds. Russian airline Aeroflot’s Sukhoi Superjet 100 on fire at Moscow’s Sheremetyevo airport. Credit: EPA/Russian Investigative Committee Additionally, for many years in Australia the civil aviation regulator, now CASA, required an additional partial evacuation demonstration be conducted by the airline wanting to introduce the new aircraft into service.That demonstration had to show the airline’s own crew could evacuate the aircraft with half the cabin crew complement with half a load of passengers and through half of the doors in 90 seconds.But the potentially flawed part of that argument was these evacuation demonstrations were carried out with the aircraft intact, sitting evenly on its wheels with no real emergency, no fire, smoke or obstructions in the cabin, no real threat of death adding dire urgency, and no panic among the passengers.In my experience, they don’t really test how the passengers will react or the crew will function under the severe stress of an emergency like the case in Russia with the Aeroflot aircraft fire.The Russian crash also shows that the 90-second time standard needs to be reviewed. Aeroflot says the evacuation of the Sukkoi aircraft took only 55 seconds, through only half the doors, and still more than half the passengers didn’t get out.A change in the ratioThe report of the Standing Committee inquiry actually recommended keeping the 1/36 ratio but the government rejected this, saying: “The unequivocal advice from both CASA and OTS (Office of Transport Security) is that having a one cabin crew member to every fifty passenger seats ratio in Australia does not reduce the safety or security of domestic aircraft operations.” On flights with less than 216 passengers, CASA has been allowing some airlines to operate on the 1/50 ratio since 2006, although the appropriate legislation has still to be changed to reflect this.The real issue in play when the cabin crew ratio was being changed in Australia, was the Australian airlines were at a competitive disadvantage against internationals operating into Australia, so the Australian airlines wanted parity.I can see the commercial argument. But in my 40 years working in air safety, it was the only time I’d seen airlines openly argue a position for what was actually a lower standard of safety than already in place.How many exits?One of the serious problems that resulted from the cabin crew ratio rule change that went under the regulatory radar is that now on 100 to 149 seat aircraft, only three cabin crew are mandated. Emergency exits left and right. Credit: Shutterstock/Chatree Ryanair strike hits 600 flights, 100,000 passengerscenter_img Citation: Passenger planes need enough cabin crew to operate all the exits in an emergency (2019, May 8) retrieved 17 July 2019 from https://phys.org/news/2019-05-passenger-planes-cabin-crew-exits.html The Sukhoi Superjet-100 aircraft was carrying 73 passengers and five crew members when it burst into flames at Moscow airport on Sunday. At least 41 people are reported to have died.What happened in the Aeroflot accident and evacuation is now subject to investigation. But what about the broader question of cabin crew safety this incident raises?Cabin crew numbersIn 2010 the Australian Civil Aviation Safety Authority (CASA) mooted changes to reduce cabin crew numbers from a minimum ratio of 1 for every 36 passengers to 1 per 50 passengers.The 1/50 had been global standard for years, but until 2010 Australia had the higher standard of 1/36 (since the inception of the jet age). It’s reasonable to assume the Aeroflot aircraft would have been operating under the same international 1/50 regulation.In 2011 an inquiry into cabin crew numbers was set up by the Australian Government’s House Standing Committee on Infrastructure and Communications.In submissions, Qantas and others argued that 1/50 was the global standard – despite the fact we already had a higher standard.The Flight Attendants’ Association of Australia and the Australian & International Pilots’ Association were among those calling for no change.Evacuation tests Provided by The Conversation Cabin crew can be lifesavers in any emergency. Credit: Shutterstock/ChameleonsEye This article is republished from The Conversation under a Creative Commons license. Read the original article. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Amazon Prime Day The Best Science Kit Deals

first_imgIf you have a child who loves to dig up bugs, build rolling robots, or is just curious about how things work, one of these science kits may be for you. Here’s a look at what Amazon has on sale today (July 16) as Prime Day deals for its Prime members.  Live Science will continue to update this page throughout the day with new deals and updates to current science kit deals.  Spy Science KitHeadbutting Tiny Worms Are Really, Really LoudThis rapid strike produces a loud ‘pop’ comparable to those made by snapping shrimps, one of the most intense biological sounds measured at sea.Your Recommended PlaylistVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9接下来播放Why Is It ‘Snowing’ Salt in the Dead Sea?01:53 facebook twitter 发邮件 reddit 链接https://www.livescience.com/59752-amazon-prime-day-science-kits.html?jwsource=cl已复制直播00:0000:3500:35  Embrace your inner 007 and learn about science, with this kit, which offers two exciting mysteries to solve using eight scientific activities. Learn about how crime labs work as you match fingerprints, analyze DNA and test liquids and powders. Recommended for ages 8 and up. Prime Day price: $12.70, a savings of 42% for Prime members Buy Spy Science Kit on Amazon.com Magical Microbes DoughLab We wouldn’t be able to make bread without microbes! This kit will teach curious young bakers about the interactions of different microorganisms in baking, and how they affect the texture and taste of delicious bread. Kit includes: high-protein flour, dry yeast, baking tins, mixing containers, inflatable gloves, wooden mixing sticks, a measuring spoon, sugar and salt. Prime Day price: $19.99, a savings of 25% for Prime members Buy Magical Microbes DoughLab on Amazon.com Clickety Flix Retroscope Take a step back into the early days of moviemaking, with the Smartivity Clickety Flix Retroscope kit. Make “movies” from still images by building a hand-cranked device to rotate images like a flipbook, creating an animated show from sequential photos or drawings. Prime Day price: $26.45, a savings of 24% for Prime members Buy Clickety Flix Retroscope on Amazon.com Fruit Battery Science Experiment Kit Did you know that you can generate electricity with fruits or vegetables? This kit provides everything you’ll need (except the produce) to turn a banana, tomato, lemon or potato into a working battery that can power LED lights or an electronic clock. Prime Day price: $7.19, a savings of 20% for Prime members Buy Fruit Battery Kit on Amazon.com Optical Illusions Science Kit You won’t believe your eyes when you peer at the optical illusions in this kit. Over a dozen experiments will engage and delight kids ages 8 to 12, teaching them about what makes an optical illusion and how our brains “trick” our eyes by transforming what we see. Prime Day price: $17.59, a savings of 20% for Prime members Buy Optical Illusions Kit on Amazon.com Weird Slime Goo Lab Immerse yourself up to the elbows in the gooey, gross science of slime. This kit contains everything you need to make squishy handfuls of slime, including slime ingredients; protective goggles, mask and gloves; and resealable containers. “Recipes” for special types of slime will help you create “blood clots,” “leech soup,” and “rat guts noodles.” Prime Day price: $25.20, Prime members save an additional 20% at checkout Buy Slime Goo Lab on Amazon.com Blast-Off Space Rocket Reach for the stars with a kit for building a wooden rocket and launch pad, assembled with rubber bands. Adjusting the elastic bands controls the speed of the rocket. Finished models may be customized with paint (not included). Prime Day price: $19.74, a 21% savings for Prime members Buy Blast-Off Space Rocket on Amazon.com Light-Up Terrarium Inside this container is a tiny world: a miniature garden which can be illuminated at night by a built-in LED light. The kit includes colored sand, rocks and soil; wheatgrass and chia seeds; whimsical miniatures of a mushroom and rabbit; and tools for planting and watering the seeds. Prime Day price: $19.99, a 20% savings for Prime members Buy Light-Up Terrarium on Amazon.com Jumbo Gem Dig Kit Any geologist will tell you that this kit really rocks. Grab a chisel and mallet and start whacking away at the “dig brick” to excavate 15 real and gorgeous gems, including lapis lazuli, red jasper, dragon’s eye, snowflake obsidian, serpentine and rainbow fluorite. An illustrated gem guide provides helpful digging tips and facts about the gems. Prime Day price: $14.74, a 41% savings for Prime members Buy Jumbo Gem Dig Kit on Amazon.com Physics Lab Kids’ faces will light up when they see this kit for experiments in electricity and magnetism. Recommended for grades 7 to 12, the kit includes 56 items for building electrical projects and 21 items for creating magnetic projects. The kit requires 3 AA batteries (not included). Prime Day price: $39.99, a 50% savings for Prime members Buy Physics Lab on Amazon.com Back to the Roots Water Garden Betta Fish Aquaponic Ecosystem Science Kit for Kids Raise a colorful betta fish (Betta splendens) and grow hydroponic plants at the same time using this educational kit. Kids will learn how an ecosystem works: The fish’s waste nourishes the plants, which in turn provide oxygen for the water. This kit contains radish and wheatgrass seeds and a growing medium; water conditioner and dechlorinator; PH strips for testing the water; and fish food (fish not included). Prime Day price: $76.30, a savings of 43% for Prime members Buy Aquaponic Ecosystem Kit on Amazon.com Magnets! Super Science Kit for Kids If your child is attracted to magnets, this kit may be for you. With 20 lab tools and 9 experiments, children age 8 and up will learn how magnetic forces work and how they shape technologies that are used every day. Prime Day price: $29.95, save an additional 20% at checkout Buy Magnets! Science Kit on Amazon.com Giggleway Electric Motor Robotic Science Kit Kids as young as 8 will learn about robotics, circuitry and engineering as they assemble these endearing, googly-eyed robots. The kit includes parts for three robot friends: a “reptile robot,” a car robot and a doodling robot. Prime Day price: $18.00, a savings of 17% for Prime members Buy Robotic Science Kit on Amazon.com Amscope Beginner Microscope Kit This durable metal compound microscope is perfect for beginners. It includes a built-in light for direct illumination as well as a mirror for natural lighting, and provides six levels of magnification: 120X, 240X, 300X, 480X, 600X and 1200X. The kit comes in a sturdy carrying case and also contains sample slides, cover slips, tweezers, a scalpel, specimen vials, and adjustable lenses — everything a budding scientist needs to get started! Prime Day price: $36.79, a savings of 20% for Prime members Buy Beginner Microscope Kit on Amazon.com Climbing Vehicle STEM Kit This build-it-yourself vehicle doesn’t need roads. In this kit, kids will find parts, tools and instructions for constructing a 4-wheel-drive vehicle that navigates over uneven surfaces. Recommended for ages 7 and up, the climbing vehicle kit includes gears and a motor powered by a solar panel or a AA battery (not included). Prime Day price: $18.59, a savings of 38% for Prime members Buy Climbing Vehicle STEM Kit on Amazon.com Bones! Animal Science Kit for Kids Recommended for ages 8 and up, this kit introduces children to the excitement (and grossness) of using lab tools to pry apart owl pellets — regurgitated balls of undigested bones — to identify the animals that the owls have eaten. The kit comes with a 20-page lab guide and 10 learning activities about using owl pellets to gather clues about owls, their prey and their habitats. Prime Day price: $29.92, save an additional 20% at checkout Buy Bones! Animal Science Kit on Amazon.com Elecfly Kids’ Microscope Suitable for ages 5 and up, this colorful, easy-to-use microscope will allow young children to observe insects, plants and even creatures that are too small to see with the naked eye. There are three fixed lenses in a rotatable head, providing 6 levels of magnification: 40x, 64x, 100x, 160x, 400x and 640x. The kit includes 25 specimen slides, a petri dish, forceps, a dropper, a test tube, cover slips, and an instruction manual.   Prime Day price: $31.99, a savings of 20% for Prime members Buy Elecfly Kids’ Microscope on Amazon.com Fizz! Chemistry Lab Kit Pop! Fizz! Kids age 8 (with adult supervision) and up will have a blast learning basic principles of chemistry and testing materials that spark, foam and snap. The kit includes everything you’ll need to enjoy hours of chemistry learning and fun, including protective goggles, food coloring, baking soda, measuring cups, spatulas, brushes, a pipette and a 36-page career and lab guide. Prime Day price: $29.95, save an additional 20% at checkout Buy Fizz! Chemistry Kit on Amazon.com Pica Toys Wooden Solar and Wireless Remote Control Car Kit Spark your child’s imagination with a kit that introduces them to fundamentals of electricity and circuits, as they build a wireless remote control car that runs on solar power. Suitable for ages 6 and up. Prime Day price: $27.99, a savings of 20% for Prime members Buy Wooden Solar Car on Amazon.com Mega Fossil Dig Kit Young paleontologists will really dig this fossil kit, which comes with 15 fossils for them to excavate. The kit includes a chisel, brush and mallet for chipping away at a block that holds fossilized shark teeth, dinosaur bones, ammonites (extinct sea animals) and more. Prime Day price: $19.74, a savings of 21% for Prime members Buy Mega Fossil Dig Kit on Amazon.com Originally published on Live Science.by Taboolaby TaboolaSponsored LinksSponsored LinksPromoted LinksPromoted LinksYou May LikeVikings: Free Online GamePlay this for 1 minute and see why everyone is addictedVikings: Free Online GameUndoTruthFinder People Search SubscriptionOne Thing All Liars Have in Common, Brace YourselfTruthFinder People Search SubscriptionUndoGundry MD Total Restore SupplementU.S. Cardiologist: It’s Like a Pressure Wash for Your InsidesGundry MD Total Restore SupplementUndoLivestlyThe List Of Dog Breeds To Avoid At All CostsLivestlyUndoArticles VallyDad Cuts Daughter’s Hair Off For Getting Birthday Highlights, Then Mom Does The UnthinkableArticles VallyUndoAncestryThe Story Behind Your Last Name Will Surprise YouAncestryUndolast_img read more