The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.
Super glue was invented by accident the researcher was trying to make optical coating materials, n would test their properties by putting dem between 2 prisms and shining light through dem when he tried cyano-acrylate, he couldn't get the prisms apart.
No matter its size or thickness, no piece of paper can be folded in half more than 7 times.
A car traveling at 80 km/h uses half its fuel to overcome wind resistance.
Knowledge is growing so fast that ninety per cent of what we will know in fifty years time, will be discovered in those fifty years.
According to an old english system of time units, a moment is one and a half minutes.
The typewriter was invented in 1829, and the automatic dishwasher in 1889.
The wristwatch was invented in 1904 by louis cartier.
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
Ten minutes of one hurricane contains enough energy to match the nuclear stockpiles of the world.
Most gemstones contain several elements. The exception? The diamond. It's all carbon.
Diamonds are the hardest substance known to man.
Which of the 50 states has never had an earthquake? North dakota.
When hydrogen burns in the air, water is formed.
Sterling silver contains 7.5% copper.
Cars were first made with ignition keys in 1949.
J.b dunlop was first to put air into tires.
Alexander graham bell, who invented the telephone, also set a world water-speed record of over seventy miles an hour at the age of seventy two.
It is energy-efficient to turn off a fluorescent light only if it will not be used again within an hour or more. This is because of the high voltage needed to turn it on, and the shortened life this high voltage causes.
The earth's equatorial circumference (40,075 km) is greater than its polar circumference (40,008 km).
Lake baikal is the deepest lake in the world.
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
The earth's average velocity orbiting the sun is 107,220 km per hour.
There is a high and low tide because of our moon and the sun.
The united states consumes 25% of all the worlds energy.
Flying from london to new york by concord, due to the time zones crossed, you can arrive 2 hours before you leave.
There is enough fuel in a full tank of a jumbo jet to drive an average car four times around the world.
The surface speed record on the moon is 10.56 miles per hour. It was set with the lunar rover.
If you could drive to the sun -- at 55 miles per hour -- it would take about 193 years.
The moon is one million times drier than the gobi desert.
Just twenty seconds worth of fuel remained when apollo 11's lunar module landed on the moon.
A boeing 707 uses four thousand gallons of fuel in its take-off climb.
The planet saturn has a density lower than water. So, if placed in water it would float.
Since 1959, more than 6,000 pieces of 'space junk' (abandoned rocket and satellite parts) have fallen out of orbit - many of these have hit the earth's surface.
It takes 70% less energy to produce a ton of paper from recycled paper than from trees.
Every year in the us, 625 people are struck by lightning.
Hawaii is moving toward japan 4 inches every year.
The rocket engine has to supply its own oxygen so it can burn its fuel in outer space.
The north atlantic gets 1 inch wider every year.
Oxygen is the most abundant element in the earths crust, waters, and atmosphere (about 49.5%).
A stroke of lightning discharges from 10 to 100 million volts & 30,000 amperes of electricity.
A bolt of lightning is about 54,000f (30,000c); six times hotter than the sun.
Hydrogen is the most abundant element in the universe (75%).
The average distance between the earth & the moon is 238,857 miles (384,392 km).
The moon is 27% the size of the earth.
The center of the sun is about 27 million degrees fahrenheit (15 million c).
Sunlight takes about 8 minutes & 20 seconds to reach the earth at 186,282 miles/sec (299,792 km/sec).
The highest temperature on earth was 136f (58c) in libya in 1922.
The lowest temperature on earth was -128.6f (-89.6c) in antarctica in 1983.
Sunlight can penetrate clean ocean water to a depth of 240 feet.
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Precautions while using UPS
The LEDs shown on the mini current path represent the various UPS power paths and show the current UPS operating status.The status description of indicators is shown in table 4 2.