How Big is an Atom?
The size of an atom is almost impossible to measure because the Atom contains 20 different particles. Electrons, for instance, …
How Big is a Particle?
Particles of all different shapes and sizes are less than 0.5 nanometers (µm)
- Polymeric Particles 0.5µm
- Metal Particles 0.5µm …
How Big is the Brightest Star
Sirius is the brightest star in the winter night sky of the ‘Northern Hemisphere’. Sirius is easily confused with Jupiter as …
How big is the Universe
As a keen astronomer, I am still amazed at how vast and apparently endless the Universe appears to be. NASA …