Science and Technology Trivia
You know the three physical dimensions, and the fourth dimension, time. For years, people have speculated about other dimensions. Experts in theoretical physics now say the major theories about the universe make sense together - and all the math seems to work - if there are 10 dimensions.
A scientist at Michigan State University has calculated that the production of a single hen egg requires about 120 gallons of water, a loaf of bread requires 300 gallons, and a pound of beef, 3,500.
Portland cement is used for underwater work. It hardens because of a chemical reaction it has with the water, not because the water mixed with it evaporates. The amount of water that reacts with the cement is crucial for this process, and the physical structure of this cement enables it to control exactly how much water gets into the reaction. So it doesn't matter at all how much water surrounds the cement as long as it has enough to set.
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
The first "technology" corporation to move into California's Silicon Valley was Hewlett-Packard, in 1938. Stanford University engineers Bill Hewlett and Dave Packard started their company in a Palo Alto garage, with $1,538. Their first product was an audio oscillator bought by Walt Disney Studios for use in making Fantasia.
The first U.S. census to be tallied by computer was in 1950. UNIVAC did the tallying.
Rain contains vitamin B12.
ENIAC, the first electronic computer, appeared 50 years ago. The original ENIAC was about 80 feet long, weighed 30 tons, had 17,000 tubes. By comparison, a desktop computer today can store a million times more information than an ENIAC, and 50,000 times faster.
From bridges to rebar, rust is everywhere. According to a recent study, the annual cost of metallic corrosion in the U.S. is approximately $300 billion. The report, by Battelle, Columbus, Ohio, and the Specialty Steel Industry of North America, Washington, D.C., estimated that about one-third of that cost could be avoided through broader application of corrosion-resistant material and "best anti-corrosive practice" from design through maintenance.
From the smallest microprocessor to the biggest mainframe, the average American depends on over 264 computers per day.
The first man-made item to exceed the speed of sound is the bull whip our leather whip. When the whip is snapped, the knotted end makes a "crack" or popping noise. It is actually causing a mini sonic boom as it exceeds the speed of sound.
The hardness of ice is similar to that of concrete.
A full moon always rises at sunset.
A bowl of lime Jell-O, when hooked up to an EEG machine, exhibited movement which is virtually identical to the brain waves of a healthy adult man or woman.
If the world were tilted one degree more either way, the planet would not be habitable because the area around the equator would be too hot and the poles would be too cold.
The opposite of a "vacuum" is a "plenum."
In 1980, Namco released PAC-MAN, the most popular video game (or arcade game) of all time. The original name was going to be PUCK MAN, but executives saw the potential for vandals to scratch out part of the P in the games marquee and labeling.
Clothes that are dried outside DO smell better because of a process called photolysis. What happens is this: sunlight breaks down compounds in the laundry that cause odor, such as perspiration and body oils.
Clouds fly higher during the day than the night.
Dirty snow melts faster than clean.
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