New research sheds lights on the resilient and technologically advanced Gravettian culture, which dominated Ice Age Europe and left a 20,000-year mark.
Category: climatology – Page 65
Most detailed geological model reveals Earth’s past 100 million years
Climate, tectonics and time combine to create powerful forces that craft the face of our planet. Add the gradual sculpting of the Earth’s surface by rivers and what to us seems solid as rock is constantly changing.
However, our understanding of this dynamic process has at best been patchy.
Scientists today have published new research revealing a detailed and dynamic model of the Earth’s surface over the past 100 million years.
Japan’s new supercomputer will forecast heavy rains 6 hours in advance
The new supercomputer system can predict the occurrence of linear rainbands, which are clouds that trigger heavy rain, leading to natural disasters.
Trust Japan to get a supercomputer to predict heavy rain and other natural disasters like landslides and flooding.
Japan has always had to deal with natural disasters as the island is located along an area where several tectonic plates meet. The country is highly vulnerable to natural disasters such as earthquakes, tsunamis, and natural disasters. These have only been exacerbated due to climate change.
Water is Behind the Electrification of Sand
The results of new experiments indicate that surface-adsorbed water molecules are responsible for contact electrification in granular matter, a finding that challenges established models of this phenomenon.
When two surfaces come into contact, they can exchange electrical charge. This fundamental phenomenon is linked to some of humankind’s earliest scientific experiments—reports suggest that the ancient Greeks uncovered static electricity after rubbing various materials together. Numerous physical processes are at play when two objects touch. But the mechanism underpinning charge exchange—which is known as contact electrification—has bedeviled scientists for centuries [1]. New experiments by Galien Grosjean and Scott Waitukaitis of the Institute of Science and Technology Austria now bring welcome clarity in this field [2]. By levitating a single particle and measuring its charge after consecutive collisions with a surface, the researchers were able to uncover a connection between contact electrification and water molecules on the particle and the surface.
When large numbers of insulating particles, such as grains of sand or particles of flour, collide or rub past each other, enormous electric potentials can build up. Such potentials can have dramatic consequences, leading to spectacular discharges, such as the lightning flashes seen during a sandstorm or a volcanic-ash eruption. Closer to home, such discharges can ignite flammable dusts or disrupt powder flows [3, 4]. But a mystery surrounds this contact electrification: How can identical particles exchange charge? In other words, Why does one of the particles become a donor of charge and the other an acceptor?
Trailer: The Future With Hannah Fry
Our new series The Future with Hannah Fry explores the science, tech and people on the cusp of the most transformative breakthroughs of our age – from AI to clean energy. Watch the first episode on Bloomberg Originals on Feb. 22.
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Do you want to know what your future holds? A life beyond 150 years old? A world where computers can read our emotions? A planet transformed by unlimited clean energy? Mathematician Hannah Fry will explore these questions and more in the new series The Future With Hannah Fry, debuting on Bloomberg Originals on Feb. 22.
Watch The Future With Hannah Fry on Wednesdays at 8:30 p.m. ET on Bloomberg.com, the Bloomberg app on your connected TV, Apple TV, Roku, Samsung TV.
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West’s growing cleantech is denting Chinese dominance over green energy
Climate change policy has entered a new era. The growing row between the United States and the European Union over the impacts of the new American green subsidy regime makes that all too clear. Yet, in many ways, this story is ultimately about China.
For the last 20 years, developed countries have used three main types of policies to cut their greenhouse gas emissions. Renewable energy mandates have required electricity generators to invest in solar, wind, hydro, and geothermal power. Emissions trading schemes for energy and industrial businesses put a price on carbon. And energy efficiency standards have been progressively improved on a whole range of products, from vehicles and white goods to homes.
Infinite Resources — clean energy in the Arctic
A conversation with Jeff Krehmer about his upcoming book.
Clean energy, clean water, hydrogen economy, airships, bitcoin mining and more, much more.
‘Infinite Resources’
Producing nearly infinite clean energy in the arctic to address the world’s energy, water and climate problems.
A conversation with Jeff Krehmer on how to solve many the world’s problem based on his upcoming book ‘Infinite Resources.
Engineers finally peeked inside a deep neural network
Say you have a cutting-edge gadget that can crack any safe in the world—but you haven’t got a clue how it works. What do you do? You could take a much older safe-cracking tool—a trusty crowbar, perhaps. You could use that lever to pry open your gadget, peek at its innards, and try to reverse-engineer it. As it happens, that’s what scientists have just done with mathematics.
Researchers have examined a deep neural network—one type of artificial intelligence, a type that’s notoriously enigmatic on the inside—with a well-worn type of mathematical analysis that physicists and engineers have used for decades. The researchers published their results in the journal PNAS Nexus on January 23. Their results hint their AI is doing many of the same calculations that humans have long done themselves.
The paper’s authors typically use deep neural networks to predict extreme weather events or for other climate applications. While better local forecasts can help people schedule their park dates, predicting the wind and the clouds can also help renewable energy operators plan what to put into the grid in the coming hours.
ABB launches the world’s fastest electric car charger
ABB is today launching an innovative all-in-one Electric Vehicle (EV) charger, which provides the fastest charging experience on the market.
ABB’s new Terra 360 is a modular charger which can simultaneously charge up to four vehicles with dynamic power distribution. This means that drivers will not have to wait if somebody else is already charging ahead of them. They simply pull up to another plug. The new charger has a maximum output of 360 kW and is capable of fully charging any electric car in 15 minutes or less, meeting the needs of a variety of EV users, whether they need a fast charge or to top their battery up while grocery shopping.
“With governments around the world writing public policy that favors electric vehicles and charging networks to combat climate change, the demand for EV charging infrastructure, especially charging stations that are fast, convenient and easy to operate is higher than ever,” said Frank Muehlon, President of ABB’s E-mobility Division. “The Terra 360, with charging options that fit a variety of needs, is the key to fulfilling that demand and accelerating e-mobility adoption globally.”