Their metal coins had virtually the same electrical conduction and light reflectance properties as standard ones, but their optical properties were dramatically changed. Why? Learn inside.
  • Interesting Engineering
  • Jan 24, 2021

Scientists Produce Metals With Four Times the Hardness | IE - Interesting Engineering

When it comes to metallurgy, it is common knowledge that smaller grains make for harder metals. But how exactly do you achieve these grains? A group of Brown University researchers has found a metho… [+1836 chars]

More In science

What is a quasar? | Astronomy Essentials - EarthSky
  • EarthSky
  • Feb 28, 2021

A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole....

This photo shows two stunning light phenomena at the same time - BGR
  • BGR
  • Feb 27, 2021

Lightning strikes that we see here on the surface are only one kind of storm phenomenon, and others happen in places we can’t see from the ground.  Lightning also produces incredible sights in the space above the clouds, extending into the atmosphere in color…...