While atoms are indeed mostly empty space, the void is filled with the electromagnetic fields generated by the electrons within the atom. These affect light waves as they move through materials, preventing them from passing straight through unimpeded. Switching to radiation of shorter wavelength, like X-rays or gamma rays, allows even relatively dense materials to become transparent.
Monday, October 29, 2018
Atoms, Empty Space and Density
If atoms are mostly empty space, many wonder why matter is not transparent. Here's a simple answer from sciencefocus.com.
Friday, October 19, 2018
Rotting Corpses - Homes for Babies
Mothers love their children, even in the insect world. The Burying Beetle is no exception. This beetle uses corpses of dead animals to create a wonderful nursery for her young. Because of the beetles secretions, the carcass does not rot and the children have a warm, dry place to live and eat. Here's another creative example of the intelligence of design.
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