Einstein didn't believe gravity was a force at all; he said it was a distortion in the shape of space-time, otherwise known as "the fourth dimension" (see How Special Relativity Works to learn about space-time). Basic physics states that if there are no external forces at work, an obj...
Also; notice that the new object being created around the source of gravity is growing larger Basically, this is how we think planets are eventually formed! Main Concept #2: Gravity is what effects all of the motion in space. Would any of the planets orbit the sun if the sun had no ...
Artificial gravity, produced by a mechanical centrifuge, helps solve this problem. Experiments that control the amount and duration of artificial gravity help researchers determine how much gravity affects the direction of root growth. Luckily, the moon and Mars both have some level of gravity, ...
In October 1957, the Soviets finally proved Newton correct when they launched Sputnik 1 -- the first artificial satellite to orbit Earth. This kick-started thespace raceand initiated a long-term love affair with objects designed to travel in circular paths around our planet or other planets in ...
This shape makes the parachute act like a wing (see How Airplanes Work for a description of wings). Instead of coming straight down like you would with a round parachute, you actually glide in with a ram-air chute. You also have a lot of control with a ram-air chute. You have two ...
skip to main content how that spinning spacecraft from the martian would work in the martian astronauts use a spinning spacecraft to create artificial gravity. how does this compare to other spacecraft? 20th century fox save save in the martian movie, astronauts travel to mars in a large ...
Like other species, we are the products of millions of years of adaptation. Now we're taking matters into our own hands.
Most modern surgical implants, including staples, artificial joints and stents are made of non-magnetic materials, and even if they're not, they may be approved for scanning. But let your doctor know, as some orthopedic hardware in the area of a scan can cause distortions in the image. Fre...
On spaceships, such as "Star Trek"'s Enterprise or Star Wars' "Millennium Falcon," there is some type of artificial gravity field that allows the occupants to experience normal gravity in flight. This is important to counteract the adverse effects of prolonged weightlessness. It is also easier...
Remember, weight is an object's mass times the force of gravity acting on it. Your weight would change on the moon because of lesser gravity, but your mass stays the same. To put it more simply: a = (W - D) / m (source: NASA) As an object accelerates, its velocity and drag ...