Japan tests next-generation Shinkansen bullet train

A prototype of Japan's next-generation Shinkansen bullet train, set to be the fastest train on wheels when it enters service, reached speeds of 320 kilometres (198 miles) per hour on a test run Thursday.

Pushing the bounds of vision could reveal hidden worlds

Nature is complex – often too complex for humans to see. But squint-controlled glasses that let people see 3-D thermal images and a camera that can capture the inner workings of high-speed chemical reactions are helping ...

Camera on NASA's Lunar Orbiter survived 2014 meteoroid hit

On Oct. 13, 2014 something very strange happened to the camera aboard NASA's Lunar Reconnaissance Orbiter (LRO). The Lunar Reconnaissance Orbiter Camera (LROC), which normally produces beautifully clear images of the lunar ...

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Bullet

A bullet is a projectile propelled by a firearm, sling, or air gun. Bullets do not normally contain explosives, but damage the intended target by impact and penetration. The word "bullet" is sometimes erroneously used to refer to ammunition generally, or to a cartridge, which is a combination of the bullet, case/shell, powder, and primer.

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