Here on the Earth's surface we live at the bottom of a gravity well.
And our technologies of how to get out of that gravity well are really rather primitive.
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April Fools' Day would become a perennial black hole in my calendar, a gravity well into which my attention would be sucked from increasingly great distances in time.
As Iain Thomson puts it, it really might be time to take this space idea seriously and get on with getting up and out of this gravity well.
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"The important thing to consider is that the Earth has a very deep gravity well so anything you can make in situ on the Moon will save an awful lot of energy and therefore money, " he said.
The closest most of us 'round here will ever get to outer space is blogging about the Lunar X Prize, so our inner astronauts get rather giddy any time an amateur makes it to the cusp of the gravity well.
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The overall strength of the moon's gravity, as well as its differential (tidal) effect, is greatest when the moon is closest to the Earth, as on January 4, 1912.
On the plus side, the Volt feels like it has a low center of gravity, and responds well to steering inputs.
You drill two horizontal wells and inject steam into the upper one, draw bitumen by gravity into the lower well and bring it to the surface.
Because gravity pulls on light as well as matter, when light passes by a heavy object it bends as though it is passing through a lens.
The existing laws of gravity predict the motions of the planets extremely well, making it hard to modify them to cater to the errant ways of a couple of pesky space probes.
But her critics may well also be right, that the gravity of the situation demands a dramatic step forward, right now.
Its off-center of gravity design realizes stability and ease of grip as well as a sense of stability and lightness, offering comfortable use for hours.
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We were operating in a near perfect vacuum with the temperature well above 200 degrees Fahrenheit with the local gravity only one sixth that of Earth.
Passing sentence, Sheriff Joseph Platt said the frauds were "well planned" and that because of the gravity of the offences that "only custodial sentences are appropriate".
Strength training can involve a number of approaches including using free weights, such as dumbbells or barbells, resistance or elastic bands that allow you to flex using your arms and legs, as well as ankle weights or vests and other special exercises that use your body weight to simulate resistance against gravity.
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