A cruise missile is basically a small, pilotless airplane. Cruise missiles have an 8.5-foot (2.61-meter) wingspan, are powered by turbofan engines and can fly 500 to 1,000 miles (805 to 1,610 km) depending on the configuration. A cruise missile's job in life is to deliver a 1,000...
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...
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...
Let's give an extreme example. Let's say that a car has been retrofitted with low-profile tires, and the odometer says that it has gone 11 miles, but mile markers say it has gone 10. The car is taken out to survey a route for the bike club. Multiplying the car's odometer readings...
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 equatorial circumference of Earth is 24,901 miles (40,075 km). However, from the North Pole to the South Pole, the so-...
Now you would think recreating a giant 432,474 mile diameter ball of gas that’s 93 million miles away would be difficult, but it’s actually quite simple. All you need is a powerful strobe, move it up 92.999 million miles closer, and viola, Sun galore!
They can make the weaponsmaller in diameter. The smaller cross-sectional area means that the bomb has to move less material (earth or concrete) "out of the way" as it penetrates. They can make the bombfasterto increase its kinetic energy. The only practical way to do this is to add so...
Many prefer using an all natural 100% carnauba wax, which is made from the outside surface of a leaf [source: Oppido]. It is super strong and also friendly towards the environment. It will first of all, help fill-in any remaining deep scratches, second, protect the CD from being ...
Wind turbine blade size is a crucial factor in the efficiency and power output of wind energy systems. As technology advances, engineers aim to build larger blades that can capture more wind energy and generate more electricity. While this presents exciting opportunities for increased renewable energy...
The Earth's radius is about 4,000 miles. Suppose you are traveling along the equator for 9,039 miles. What angle in radians does that distance correspond to? Believing the age of Earth to be about 4 x 10^9 years and assuming its orbital radius of 1.5 x 10...