Apple has launched four new iPhone models: the iPhone 14 and 14 Plus, along with the iPhone 14 Pro and 14 Pro Max. The 14 Pro models feature the new Apple A16 Bionic, Apple’s latest mobile SoC. The emphasis for this latest generation of mobile processor is power efficiency.
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#energy #wind #turbines #energy #ngscience
Electricity is very important to people. We use it to power our homes, cities and trains and cars.
One of the main ways we produce electricity is with the use of a generator. A generator is a device that converts mechanical kinetic energy into electrical energy.
A wind turbine is a very large windmill that uses the kinetic energy in wind to spin its blades. The blades spin a generator that transforms the energy into electrical energy.
Often, particularly in very windy places, many wind turbines are grouped together to form a wind farm. Wind farms can produce enough electricity to power whole cities.
A big advantage of wind energy is that it is a clean and renewable energy source. It does not require the burning of fuels and does not produce harmful emissions in to the air.
There are some disadvantages of using wind energy. The large spinning blades on a wind turbine can kill or harm flying animal like birds and bat. They can produce loud sounds that can disturb natural environments and be annoying to people. And if damaged, wind turbines can be expensive to repair.
Check out our related videos on the advantages and disadvantages of other electricity production methods.
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Energy too cheap to meter – that was the promise of nuclear power in the 1950s, at least according to Lewis Strauss chairman of the Atomic Energy Commission. That promise has not come to pass – but with some incredible new technologies, perhaps it still could. The question is – should it?
Hosted by Matt O’Dowd
Written by Matt O’Dowd
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Produced By: Kornhaber Brown
If we want to convert mass into energy, fission gives the most bang for our buck. Unfortunately that “bang” can be literal. Use of nuclear energy may risk the proliferation of nuclear weaponry, and there’s also the problem of nuclear waste, and the specter of horrible accidents. This last one was painted in terrifying detail in the recent dramatization of the Chernobyl disaster. Nuclear reactors sound scary because the disasters are pretty epic. However the reality is that far, far more people die from straight up air pollution due to coal-fired power plants than ever died in a nuclear reactor accident. In fact the radioactivity around coal-fired plants is also higher due to the trace but completely uncontained radioactive products of coal burning.
But the most compelling attraction is that nuclear power doesn’t directly produce carbon emissions. In fact nuclear power may be our most sure path to reducing carbon emissions and halting climate change. But can we do nuclear power safely enough? There are modern ideas – including the much-hyped thorium reactor – that suggest maybe we can. Before we can understand those we’ll need to review how nuclear reactors work.
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For more information on Michael Shellenberger, please visit www.tedxberlin.de. Michael Shellenberger is co-founder and Senior Fellow at the Breakthrough Institute, where he was president from 2003 to 2015, and a co-author of the Ecomodernist Manifesto.
Over the last decade, Michael and his colleagues have constructed a new paradigm that views prosperity, cheap energy and nuclear power as the keys to environmental progress. A book he co-wrote (with Ted Nordhaus) in 2007, Break Through: From the Death of Environmentalism
to the Politics of Possibility, was called by Wired magazine “the best thing to happen to environmentalism since Rachel Carson’s Silent Spring,” while Time Magazine called him a “hero of the environment.” In the 1990s, he helped protect the last signi cant groves of old-growth redwoods still in private hands and bring about labor improvements to Nike factories in Asia. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx Video Rating: / 5
Revisiting Small Modular Reactors – The Future of Nuclear Energy? Get Surfshark VPN at https://surfshark.deals/undecided and enter promo code UNDECIDED for 83% off and 3 extra months for free! Although nuclear energy is reliable and a sustainable energy source, the nuclear energy debate rages on. It’s not considered the go-to solution in the renewable energy transition. Solar, wind, and hydro are getting all the attention. Nuclear reactors are big, expensive, and take a long time to build, but what if we could make them smaller, portable, cheaper, and safer. Small modular reactors are getting a lot of interest with the first versions coming online in China and new locations popping up in Canada. As well as former SpaceX engineers that have made things even smaller … to a micro reactor scale. Could this be the future of nuclear energy?
Correction on NuScale: “A single NuScale Power Module (NPM) provides 77 megawatts electric (MWe), with a 12-module design resulting in a total gross output of 924 MWe.”
Watch Revisiting Thorium Energy – The Future of Nuclear Power?: https://youtu.be/uv6qt45lXDM?list=PLnTSM-ORSgi55IJwXkqPkgtq03bgQDNoH
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The Truth About Hydropower – Does Old Tech Have a Future? Hydropower may not be The New Technology on the Block, but this old school tech may have a few tricks left in it. With other renewables like wind and solar gaining momentum, is there still room for growth? Are there any downsides hydropower has to address? And what about technology advancements … there’s some cool stuff coming our way.
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Chernobyl, Fukushima, The Simpsons power plant, they all involve lies!
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Written by Greg Brown and Laura Roklicer
Edited by Luka Šarlija
Video References:
InANutShell – How Many People Did Nuclear Energy Kill? Nuclear Death Toll https://youtu.be/Jzfpyo-q-RM
Real Engineering – The Economics of Nuclear Energy https://youtu.be/UC_BCz0pzMw
References:
The Story of More by Hope Jahren
https://academic.oup.com/eurheartj/article/40/20/1590/5372326
https://ourworldindata.org/safest-sources-of-energy
https://www.nature.com/articles/497539e
https://environmentalprogress.org/big-news/2020/6/29/on-behalf-of-environmentalists-i-apologize-for-the-climate-scare
https://www.health.harvard.edu/cancer/radiation-risk-from-medical-imaging
https://www.newyorker.com/news/dispatch/is-nuclear-power-worth-the-risk
How To Avoid a Climate Disaster by Bill Gates
https://www.google.com/url?q=http://wedocs.unep.org/bitstream/handle/20.500.11822/7790/-Radiation_Effects_and_sources-2016Radiation_-_Effects_and_Sources.pdg.pdf.pdf?sequence%3D1%26isAllowed%3Dy&sa=D&source=editors&ust=1616634317411000&usg=AOvVaw3RQ_1UzwPOVYd1BEN5JEMQ
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194698/
https://ourworldindata.org/safest-sources-of-energy
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996147/
https://vault.sierraclub.org/nuclear/factsheet.aspx
How does nuclear energy work? Is radiation a risk? Find out the difference between nuclear fission and fusion, how uranium fuels the process, and the pros and cons of this alternative energy source.
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Andrew Clennett is passionate about the potential of a new energy source, one that could fuel our lives cleanly and sustainably. After many years travelling the world developing energy projects in such places as Brazil, West Africa, North America, Australia and Europe, Andrew moved with his family to New Zealand in 2012 to take on the role of General Manager of Todd Energy’s operations.
Throughout his career Andrew has had a passion for all things energy. He is driven by its potential to unlock societal growth in both developed and developing countries, together with the need to balance this with the impact of the current energy mix on our planet.
In 2017 he chose to use his skills to accelerate the transition to a new energy paradigm and became a founder and CEO of Hiringa Energy, a company developing hydrogen generation and supply infrastructure and zero emission solutions. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx Video Rating: / 5
Jannie pretend play recycling to help rescue the baby sharks of the ocean! This funny police story will help kids learn about littering and why it’s bad for the environment. Jannie shows why it’s important to recycle and to also use less plastic bags and straws.
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