Chinese coins were made out of base metals, often containing holes so they could be put together like a chain. 500 BC: Modern Coinage Outside of China, the first coins developed out of lumps of ...

Chinese scientists have developed a method to create pure gold that is both lightweight and strong by forming uniformly small pores within the solid metal. Researchers believe this technique could ...

You aren’t likely to come across one of those outside of a museum. But even modern Chinese coins can fetch seven figures on the collectibles market. See: 5 Copper Coins Worth Money Find ...

An 18th Century Chinese coin found in the remote Wessel Islands off the coast of the NT adds another piece to the puzzle of Australia’s early trade routes.

Using a phenomenon known as gravitational lensing, it might be possible to use the sun as a gigantic telescope to peer deep ...

The first image of Sagittarius A*, the supermassive black hole at the centre of the Milky Way galaxy. Source: EVENT HORIZON TELESCOPE COLLABORATION HANDOUT HANDOUT/EPA 捕捉如此遥远的物体 ...

The treasure trove dates back more than 2,000 years, with the origins estimated to be somewhere between 94 B.C. and 74 B.C. Archaeologists found the coins "hidden in a hole in the wall" while ...

YU Jingchuan, Beijing Planetarium, 2019. Chinese scientists discovered a black hole so that's so big that it throws into question previous beliefs about how black holes are formed. The newly ...

Black holes are points in space that are so dense they create deep gravity sinks. Beyond a certain region, not even light can escape the powerful tug of a black hole's gravity. And anything that ...

Just months after Chinese startup Betavolt unveiled its pilot program for a nuclear battery the size of a coin that can run ...

有不少花盆的排水孔不合理，如上图：20个孔有12个孔在底平面上，放在地上都已经堵死，只有8个孔能排水。下图的排水孔比较合理，全部在侧面 ...