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178 notícias encontradas para "current"
Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game
There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume these localities represent evidence that Clovis people
Over the past 15 years, Brazil has seen a more than 200% increase in non-native mollusk sp
A study published in the journal Biological Invasions indicates that Brazil currently has at least 82 non-native mollusk species, in addition to 13 whose origin cannot be determined. This represents a 215% increase compared with 2011, when 26 species were reported.
Scientists create quantum sound device that could transform communications
Scientists create quantum sound device that could transform communications
A new quantum device can generate precisely controlled bursts of sound-like particles, or phonons, by forcing electrons through an ultra-thin crystal at extremely low temperatures. The surprising behavior pushes beyond the limits predicted by current theories, suggesting scientis
Orbitronics clears key hurdle with direct orbital currents, boosting signals 100-fold
Orbitronics clears key hurdle with direct orbital currents, boosting signals 100-fold
Researchers at Johannes Gutenberg University Mainz (JGU) are the first to directly utilize orbital currents without the need for conversion of the orbital current into a spin current.
Foto: Nic Wood / Pexels
Optical writing of antiferromagnets points toward new storage devices and energy efficient
A German-Japanese research team involving the University of Augsburg has made a significant breakthrough in the use of antiferromagnets. For the first time, the team has succeeded in writing magnetic information using only ultrashort laser pulses—without the need for electric cur
Why put solar panels on green space when we could put them over car parks?
The long-running series in which readers answer other readers’ questions considers a hot topic within renewable energyThis week’s replies: Are there places on Earth where humans haven’t been?I would like to know why we build solar farms over green space, when we could just put th
Q&A: Harnessing climate investments to serve development goals
Climate pledges are designed to help countries reduce emissions and adapt to a changing climate, but the current iterations of these pledges place additional stresses on vulnerable nations, an international team of researchers co-led by University of Michigan Engineering and KTH
Why we need to consider city shapes to save energy, water, and the climate
The world's future is in cities. It is estimated that by 2050, 7 out of 10 people will live in urban areas (although a recent CSH study suggests that the growth of large cities may be less dramatic than current projections indicate, it still points to continued and substantial ur
This year's El Nino likely to become record-breaker: Top expert
This year's El Nino likely to become record-breaker: Top expert
The current El Nino weather phenomenon is expected to break records for its overall strength, a top expert said Tuesday, as regions face the risk of droughts, floods and other extremes linked to the event.
Foto: Edu Raw / Pexels
Day-night ocean warming helps explain why El Niño outpaces La Niña in models
Researchers have long known that there is an asymmetry in the El Niño-Southern Oscillation (ENSO), the confluence of wind and water currents that creates warm El Niño events and cooler La Niña events. Large-scale climate models tend to underrepresent this asymmetry for reasons th
More than 90% of key nutrients degrading the Mar Menor lagoon come from recirculated under
More than 90% of key nutrients degrading the Mar Menor lagoon come from recirculated under
More than 90% of the key nutrients degrading the Mar Menor, such as ammonium, phosphorus and silica, do not come from streams or continental groundwater, but rather through a mechanism that has so far been overlooked: Water from the lagoon itself infiltrates the sediments and re-
Slowing Atlantic current could fuel stronger California atmospheric rivers by century's en
A slowing Atlantic Ocean current is projected to intensify powerful storms in California while reducing snowfall over Greenland, according to a recent University of California, Riverside study. The Atlantic Meridional Overturning Circulation (AMOC) works like a giant conveyor bel