When the moon moves completely into the Earth's dark shadow cone (called the "umbra") we call that a total lunar eclipse. At the moon's average distance from Earth of 239,000 miles [383,000 km], the umbra measures roughly 5,800 miles [9,334 km] in diameter. The moon is about 2...
the planet Earth is almost 8,000 miles in diameter, so the magnetic field has to travel a long way to affect your compass. That is why a compass needs to have alightweight magnetand africtionless bearing. Otherwise, there just isn't enough strength in the Earth's magnetic field to turn...
NASA researchers have found that at 1 astronomical unit (AU), which is the distance from the sun to Earth, equal to 93 million miles (150 million km), sunlight can produce about 1.4 kilowatts (kw) of power. If you take 1.4 kw and divide it by the speed of light, you would find ...
And it's easy to see why. The sport definitely has an edge to it. There is something about leaping from a plane and falling through the air at 120 miles per hour that really gets people's attention. Have you ever wondered how skydiving works? What kind of equipment do skydive...
Therefore, the diameter of Earth through its center is 7,926 miles (12,756 km). Again, because of the equatorial bulge, the planet's diameter is slightly smaller when measured from pole to pole, where it is about 7,900 miles (12,712 km). ...
The Sun's angular diameter is measured to be 1920 inches. The distance D of the Sun from the Earth is 1.496 x 10^{11} m. What is the diameter of the Sun? What is the radius of the Earth, in kilometers and in miles? At ground level g is 9.8 m / s 2 suppose the...
How many revolutions will a car wheel of diameter 28 inches make as the car travels a distance of seven miles?Circumference:The circumference is the special case of the perimeter. The circumference is the length that enclosed a circle or ellipse. The c...
How safe is skydiving as a sport? How do you become a skydiver and how much does it cost? In this article, we will answer all of these questions and many more. The next time you watch someone skydiving on TV, you will have a whole new appreciation for what's going on! Let's ...
Even if the kind folk in Australia allowed the pile to begin on their land, and drilled a tunnel through the Earth's core to stack the money all the way through the diameter of the planet until it popped out on the opposite side in Washington DC, it still wouldn't be enough cash (...