As climate change stokes larger and more intense wildfires, firestorms are likely to become more common. Here’s why they occur and what makes them so dangerous.
People like to choose personalized tones for something as simple as a wake-up alarm or a text-message notification; getting everyone to agree on the meaning of sounds linked to dense information such as, say, the weather forecast for the next 10 days is a tall order. Related Story Why sou...
To watch one, you simply go out, look up and enjoy. You don't need a telescope or any other special equipment. However, binoculars or a small telescope will bring out details on the lunar surface — moonwatching is as interesting during an eclipse as it is at any other time. If the ...
Piano says that the spire shape of the Shard is part of a great London tradition. The shape reminds him of the spires of the churches of London or the tall masts(桅杆) of the ships that were once on the river Thames. The Shard has 87 floors. At the top, there is an observatory. ...
If you're interested in learning more about Comet Swift-Tuttle check out this interestinginformative image entry by ESA. TheNational Schools Observatoryprovides a great overview of meteor showers and how to plan your meteor spotting. If you're looking for a nice kid-friendly introduction to meteor...
If you're tall, you should book a transverse berth. Each bay is curtained off for privacy, and an attendant distributes pillows, clean sheets and blankets in the evening. Update: Curtains were removed as a Covid-19 precaution and may still be absent. Click for car plans & berth ...
That is the very likely future of applying today's "eyes in the sky" technology to making sure that the millions of kilometres of rail tracks and infrastructure(基础设施)worldwide are safe for trains on a 24/7 basis. Drones are already being used to examine high-tension electrical lines. ...
Tallying pledges Many governing bodies around the world have responded to the ocean crisis by pledging to protect swaths of ocean within their territories. To see how these commitments added up, my colleagues and I recently evaluated ocean conservation commitments announced from 2014 through 2019 at...
El Niño is associated with above-average equatorial sea-surface temperatures. El Niño's signature warmth is apparent in the November 2015 map.(Image credit: NASA Earth Observatory maps by Joshua Stevens, using data from Coral Reef Watch.) ...
you’d travel somewhere with little to no light pollution—such as a national park or acertified dark sky area. If that’s not an option, head to a dark place without any trees, tall buildings or other structures to block your view of the sky. If you’re ...