The Science

One thing about chemicals is that, once they react in certain ways, they form compounds that are nothing like the original elements. For example, if you react carbon, hydrogen and oxygen together one way you get glucose (C6H12O6)  If you react them together another way you get vinegar (C2H4O2). If you react them another way you get fat . If you react them another way you get ethanol (C2H5OH). Glucose, fat, ethanol and vinegar are nothing like each other, but they are all made from the same elements. In the case of hydrogen and oxygen gas, if you react them together one way you get liquid water (H2O). The reason we cannot breathe liquid water is because the oxygen used to make the water is bound to two hydrogen atoms, and we cannot breathe the resulting liquid. The oxygen is useless to our lungs in this form. The oxygen that fish breathe is not the oxygen in H2O. Instead, the fish are breathing O2 (oxygen gas) that is dissolved in the water. Many different gases dissolve in li

The helmet used by the U.S. military has changed dramatically over the years. In World War I, the M1917/M1917A1 helmets, also known as "Doughboy" or "dishpan" helmets, protected the heads of American infantrymen.  They were replaced in 1941 by the M-1 "steelpot," the standard-issue helmet in World War II, the Korean conflict and throughout the Vietnam War. By the 1980s, U.S. military helmets had evolved into a one-piece structure composed of multiple layers of Kevlar 29 ballistic fiber. The helmet of the near future, however, may contain something more than extra protection from flying shrapnel. An Arizona State University researcher, working under a grant from the U.S. Defense Advanced Research Projects Agency (DARPA), is trying to develop a military helmet equipped with technology to regulate soldiers' brains.  The technology is  transcranial pulsed ultrasound , which delivers high-frequency sound waves to specific regions of the brain.

Scientists have found evidence of extraterrestrial clouds blanketing two of the most common types of planets in our Milky Way galaxy, NASA officials say. Two teams of researchers used the Hubble Space Telescope to characterize the atmospheres of the two  exoplanets . One of the alien planets is a so-called "super-Earth" larger than the Earth, while the other has been dubbed a "warm Neptune." Studying both types of worlds can help scientists learn to classify the atmospheres on other Earth-like planets in the future.  "Both planets are telling us something about the diversity of planet types that occur outside of our own solar system; in this case we are discovering we may not know them as well as we thought," Heather Knutson of the California Institute of Technology said in a statement.  Knutson is lead author of the study that analyzed the planet GJ 436b, the Neptune-like world orbiting its parent star every 2.64 days. It is classified a

I recommend you the best Periodic Table for your Android: Periodic Droid. http://a.qr.ai

What gives the blue in Blue Jeans..??? Jeans are stylish. Jeans are cool. And jeans are mostly blue.  It’s quite interesting. The blue colour of jeans is because of the indigo dye that is used in the manufacturing of the jeans. What has Alfred Von Baeyer got to do with your jeans? German chemist Alfred Von Baeyer was the first person to invent synthetic indigo dye. In fact, he even won a Nobel Prize for this in 1905. Indigo is both a natural dye and a synthetic one. Indigo plants were originally harvested so that the dye of the plant could be extracted. Beyer however, was able to chemically synthesize Indigo. This lead to manufacturing Indigo on a large scale in 1897. So, if you like your blue jeans very much, you must thank Alfred Von Baeyer. How is Indigo dye used to colour? Indigo in its natural state cannot be mixed in water. It is applied as yellow leucoindigo, which is the reduced water soluble form of Indigo. 3 to 12 gms of indigo are enough to dye a pair of je

The human body and the chemical elements You are what you eat. But do you recall munching some molybdenum or snacking on selenium? Some 60 chemical elements are found in the body, but what all of them are doing there is still unknown. Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water. The remaining 4 percent is a sparse sampling of the periodic table of elements.  Some of the more prominent representatives are called macro nutrients, whereas those appearing only at the level of parts per million or less are referred to as micronutrients.  These nutrients perform various functions, including the building of bones and cell structures, regulating the body's pH, carrying charge, and driving chemical reactions. The FDA has set a reference daily intake for 12 minerals (calcium, iron, phosphorous, iodine, magnesium, zinc, selenium, copper, manganese, chromium, molybdenum

How to Make a Smoke Bomb Making a smoke bomb is fun, easy and safe with sugar and potassium nitrate. This video will teach you how to make and use a smoke bomb. Today, I'm going to show you how make a homemade smoke bomb. Smoke Bomb Materials You will need: A large mixing bowl A skillet or sauté pan Sugar Potassium Nitrate also known as salt peter, which you can order online An empty toilet paper roll. Cardboard Glue or masking tape Scissors Face Tissue Mix Smoke Bomb Ingredients Cut out a small piece of cardboard, and glue or tape it to the bottom of the empty toilet paper roll. In the large mixing bowl, combine three parts potassium nitrate with two parts sugar and mix well. Each smoke bomb can hold approximately one cup of the mixture, so measure out however much you'll need. Set a small amount of the mixture aside for making a fuse - approximately one teaspoon per smoke bomb.  Create Smoke Bomb Fuse In order to make a fuse for the smoke