资讯

Physicists have figured out how to move an object in three dimensions without the need for any physical contact, just by the clever use of magnets. Magnetic Levitation, MagLev for short, is the ...
Imagine trying to catch a fragment of a rocket nozzle in orbit above Earth’s atmosphere. The fragment is travelling faster than a bullet, and tumbling rapidly end over end. Around 27,000 orbiting ...
A 3D hologram you can touch and move: Spanish researchers have created something that is usually only seen in science fiction films. A Spanish scientific team from the Public University of Navarra ...
In recent years various techniques have emerged that make 3D imaging cheaper and faster. Some consumer devices, such as the iPhone X and the Microsoft Kinect, can create such images. And in industry, ...
3D-printed plastic blocks can now be turned into acoustic holograms that generate 3D shapes made of sound, which could function like sonic "tractor beams," according to a new study. This could lead to ...