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.
Wednesday, September 26, 2018
Spray It and Hear It
Antennas have been around for decades and are a necessity for wireless communication of any sort. The old TV antennas which used to be seen on most homes have given way to cable or satellite dishes. And many antennas are bulky and large. Now scientists have developed an antenna that is thinner than human hair and that can be sprayed onto any surface and used to capture waves of energy. Read this fascinating article from newatlas.com about these sprayable antennas.
Sunday, September 16, 2018
Four Dimensions, Imaginary Numbers and Algebra
Algebra is used in multiple fields worldwide. But how did the discovery and pursuit of four dimensions and algebra spark a breakthrough in algebra? This article in Wired has some interesting insights.
Sunday, August 5, 2018
Tying Lasers Into Knots
Friday, August 3, 2018
Snapchat Dysmorphia
Wednesday, August 1, 2018
Scutoid - A New Shape
Saturday, July 21, 2018
Toxic, Dangerous, Acidic - Cashew Nut Shells
Sunday, June 24, 2018
A Grain of Rice is Monstrous
The University of Michigan has created a computer which is a tenth the size of IBM's smallest computer. Sitting next to a grain of rice, the rice looks like a blimp! This tiny computer could be used for multiple health applications and other projects which require a "tiny" computer. Check out the article from Flipboard.
Saturday, June 9, 2018
Tick-Tock, Tock-Tick, Ding-Dong or Dong-Ding - Which Sounds Correct?
English grammar rules are so weird. It's a language that has so many little nuances and rules that it's no wonder people trying to learn English have such a difficult time. Check out this snippet from a Twitter tweet from Writer's Digest. You'll see what I mean.
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Alice Rings
Stranger than the story Alice in Wonderland, Alice Rings, named after the main character, have been observed in the world of physics. This ...
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Stranger than the story Alice in Wonderland, Alice Rings, named after the main character, have been observed in the world of physics. This ...
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Parrots talk. Other birds mimic. But crows? Yup. They can too. Crows and ravens are highly intelligent. Here's an interesting story...
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IBM has now developed transistors measuring just 2nm in width. That is narrower than a strand of human DNA. This means faster electronics,...









