The chemical properties of Helium 3 (He3) and its potential usefulness
By: Steve Lussing
Helium 3 (He-3) nuclei contain 2 protons and 1 neutron, unlike regular helium (He-4) nuclei, which contain 2 protons and 2 neutrons. He-3 is a light, non-radioactive isotope of helium and is very rare on the Earth, but relatively abundant on the moon, which is...
Defining a mole
By: D. Vogt
A mole is a unit of measurement in chemistry, which is used to count how much of a substance is present in a sample. The term was first used by Wilhelm Ostwald of Germany during the 1890s, who presumably intended it to be an abbreviation...
By: John Traveler
You can't see just one of them, but they are all around and in us. They are the smallest stable constructs of matter, and at the same time are little packages of energy. The idea for atoms dates back 25 centuries, when Ionian philosopher Democritus...
Definition of an isotope
By: D. Vogt
Isotopes are atoms which are all of the same element, but differ in terms of the number of neutrons in their nucleus. Although because they are the same elements they will generally be identical in terms of basic physical properties, two significant differences are that...
The differences between organic and inorganic compounds
By: D. Vogt
The essential difference between organic and inorganic compounds is, quite simply, that organic compounds contain carbon. More specifically, it refers to complex molecules based on carbon's unique ability to form up to four chemical bonds per atom; certain chemical compounds contain carbon (carbonates, cyanides, and...
Difference between a molecule and compound
By: D. Vogt
Essentially, a compound is a type of molecule - so a compound is a molecule, but a molecule is not necessarily a compound. In chemistry, a molecule is defined as two or more atoms (the building blocks of all larger matter) joined together in a...
By: Virginia Gaces
The diasys spectrophotometer is a brand of spectrophotometer that you can operate manually or semi-manually. Just like any other spectrophotometer, it operates using the Beer-Lambert’s Law in which the amount of light absorbed is directly proportional to the concentration of the solution. Hence, the...
What is the technological singularity?
By: Daniel Relph
A technological singularity is a technical innovation that just sucks everything in. We have the Stone Age, when all the tools were made with stone. Then there is the Bronze Age when there was a big push to make things of bronze. Then there was...
The future of the American Space Exploration Program
By: Jon Dainty Sr.
Men have traveled from the Earth to the Moon, and twelve men have walked on its surface. If a space program that provides such opportunities effects no improvements for this nation or for the world, should the U.S. continue to support it? With the...
By: Alva A
Why don't ships sink? When things are put into water they make room for themselves by pushing it aside. You push water aside when you get into a bath. That's why you have to be careful not to overfill it. Although ships are heavy, they...

 

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