Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
By: D. Victor
A candle has been described as a "lighting system". It may seem odd to think of a simple candle being a "system", but the dynamics behind the burning of a candle validate this claim. The candle can be thought of as comprising two primary aspects...
An overview about the chemical element Einsteinium
By: John Traveler
On November 1, 1952, the first thermonuclear atomic warhead was tested at Eniwetok atoll in the Marshal Islands group. It was a hydrogen bomb much more powerful than any simple atomic bomb. The test was successful producing a fireball that was 3 miles in diameter...
How to build an ethanol still
By: John Traveler
In the past eight years we have been made acutely aware of the importance of energy in economic, environmental, and logistical terms. Gasoline having exceeded $4.50 per gallon, and the awareness that burning of it is contributing to global warming has focused world attention...
An overview of the chemical element Hydrogen
By: Ernest Capraro
Always an important and interesting element, hydrogen has gathered increased notice in the public eye with the focus on hydrogen fuel cells and hydrogen cars. Surely people long to learn more about this "magic" chemical that will simultaneously help free us from gasoline and pollution...
By: Ernest Capraro
Eons ago (or decades at least), iodine was commonly found in the medicine cabinet, used to sterilize cuts and scrapes. It has been replaced in this role by less harmful products, and as a result, people are less familiar with this fascinating element.Iodine (I)...
By: Janet Grischy
Ethanol is alcohol by another name. There is more than one kind of alcohol, but ethanol is the kind humans drink. To make it, vintners ferment grapes, and vodka makers ferment and distill potatoes or grain. Fermentation may have been the first chemical reaction humans...
By: Ernest Capraro
Take a candle, hold it sideways, and place its midsection over a flame. The candle melts, but does not catch fire in your hands, unless perhaps you keep it there until the wax has melted away to expose the wick. This suggests that it is...
By: Rex Trulove
Rock tumbling is an interesting hobby that yields truly beautiful shiny stones out of ordinary looking rocks. It is a means of doing something similar to what nature does with the actions of a river or surf, in a much faster way. Let's take a...
How the chemistry in pregnancy tests work
By: Janet Grischy
If a trained technician uses a home pregnancy test, it has an accuracy rate of 97%. If an untrained woman uses one, the accuracy is much less. Why the difference? The technician is trained in precision and procedures, but, more important; she reads and follows...
An overview of the chemical element Hydrogen
By: John Traveler
Hydrogen is perhaps the most interesting of the elements in the universe, if not its simplest and most abundant one. Atoms of hydrogen represent about 75 percent of all the matter in the cosmos, and even the Earth's crust contains more hydrogen than it does...

 

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