Chemistry wallpaper for 17″ wide screen
The blue bubbles make for a nice graphic, but generally in real world chemistry lab situations sudden eruptive reactions like this are not a good thing. You might be mixing the chemicals according to instructions, but adding an strong acid for instance in an all at one once pour, rather then slowly into an ice cooled mixture might cause an unintended reaction and subsequent acid burns. Don’t Play Mad Scientist
Don’t haphazardly mix chemicals! Pay attention to the order in which chemicals are to be added to each other and do not deviate from the instructions. Even chemicals that mix to produce seemingly safe products should be handled carefully.
More then one student of chemistry has incorrectly assumed that since the instructions say add A to B, then it is safe to add B to A. Don’t assume.
Healing Value Of Magnets Demonstrated In Biomedical Engineering Study
In their initial study, magnets of 70 milliTesla (mT) field strength—about 10 times the strength of the common refrigerator variety—were placed near the rat’s blood vessels. Quantitative measurements of blood vessel diameter were taken both before and after exposure to the static magnetic fields—the force created by the magnets. Morris and Skalak found that the force had a significant effect: the vessels that had been dilated constricted, and the constricted vessels dilated, implying that the magnetic field could induce vessel relaxation in tissues with constrained blood supply, ultimately increasing blood flow.
Even though I used to wear a magnetic bracelet that someone gave me I never put much faith in the whole idea of magnetic therapy. It does turn out that I was still right about the bracelet, but magnetic therapy if done correctly with the proper equipment may be of some benefit.
A key to the success of magnetic therapy for tissue swelling is careful engineering of the proper field strength at the tissue location, a challenge in which most currently available commercial magnet systems fall short.
Anti-Missile Technology To Be Tested on Commercial Jets
A Rand study in 2005 estimated it would cost about $11 billion to protect every US airliner from shoulder-fired missiles. Over 20 years, the cost to develop, procure and operate anti-missile systems could hit $40 billion.
Sad that we live in a world where someone would even consider bringing down a plane load of innocent people, but the costs of this counter rocket system are not that bad considering the bill for occupying Iraq comes to about 5 billion dollars a month.
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