In Star Trek, Mr. Spock’s hand-held tricorder can instantly tell what something is made of. We don’t have tricorders yet, but we’re getting close. Portable devices just a little too big to hold in one ...

The terms mole and molar mass are introduced and used in calculations. Introduction to the Mole and Molar Mass: The terms mole and molar mass are introduced and used in calculations.

Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by Sparklight, the Friends of Idaho Public Television and the Corporation for Public ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A big, electron-counting machine has indirectly turned up a measurement of the slipperiest known ...