The size of an atom is only a few angstroms at most - there are 10 billion angstroms in 1 meter. This video also goes the basic parts of an atom (protons, neutrons, and electrons) and why the ...

Remarkably, even though radioactivity is a threat to life, scientists can control and use it to diagnose and treat diseases – including cancers. If the radiation is delivered precisely to where cancer ...

The Atom 2 is an impressively small drone. When folded, it's small enough to rest in the palm of your hand (2.3 by 3.5 by 5.6 inches HWD), and it weighs just shy of 8.8 ounces (249g), so it can be ...