The aurora borealis and aurora australis have dazzled us in the night sky for centuries. Here’s what causes them—and why we’re seeing them more lately.
As Earth's atmosphere has more nitrogen compared to oxygen, why aren't blue/purple auroras that are caused by nitrogen the most common? The aurora occurs so high up that the mix of air we are familiar with is not the same as at 100 km. The atmosphere there is much less dense, and ...
This is the big unknown. Most scientists say they do not think a reversal of magnetic poles would have a large impact upon life on earth. But no one was there to see when it happened in the past, and the technologies, satellites, power grids, cell phones and computers did not exist du...
The largest recorded geomagnetic storm in history occurred in 1859 and is called the Carrington Event, or sometimes the 1859 Solar Superstorm. It disrupted telegraph systems throughout Europe and North America and auroras were seen in many parts of the world. The scientists predict that if a Car...
If yousaw the northern lightsduringthe geomagnetic storms in May 2024, you might have noticed that your smartphone made the photos look even more vivid than reality. Auroras, known as the northern lights (aurora borealis) or southern lights (aurora australis) occur when thesolar wind disturbsEart...
【高分句型一】:I want to go on a trip to Beijing with my parents.我想和父母一起去北京旅行。want to do sth表示想做某事。【高分句型二】:I hope we'll have a great time.我希望我们会玩得很开心。hope后面跟一个宾语从句。
We are in this together In most African countries, with fewer reported cases (even if underestimated), early social distancing measures seem to have restricted the spread of the virus to poor, densely populated areas. However, it is likely that the virus will eventually spread. In any case, ...
there's a gap here. you don't have institutional money investing in cannabis. there's a need for capital, a very stark need for capital and how do we sort of find ways to get those companies that need larger checks. they've grown their business over the last several years, and they...
No general worth his salt ever gambled that his adversary wasn’t capable of the unthinkable. But what if this worst-case scenario paranoia is Kim’s real problem? What if he is trapped in his own imagined view of what the US might do should he back down?
statoliths in response to tilting, discovering they did not behave like a standard granular system. Statoliths move and flow no matter how the cell is angled. The surface of the statolith piles always settles into a horizontal plane, just like a liquid. But how do cells make these piles...