what if xkcd

I bought this book after thoroughly enjoying another of his books- Thing Explainer.

The lowest speed of the next cycle will be on May 1st, 2025, so if you want to wait until 2025 to slide down, you can hit the atmosphere when the pole is moving at only 390 m/s relative to the Earth's surface. On the other hand, you'll have to wear a spacesuit, so that will probably slow you down a little. Unfortunately for you, the Earth is also spinning,[11]I mean, unfortunately in this specific context.

Chimborazo in Ecuador, due to the fact that the planet bulges out at the equator. What If? Reviewed in the United Kingdom on January 8, 2016. Most of my gifts tend to be literary.
Luckily for us, it doesn't vary that much—it's usually somewhere between 390 and 450 m/s, or a little over Mach 1—so figuring out the precise value isn't necessary. More details.

Then, at last, you can drift safely to the ground, having traveled from the Moon to the Earth completely under your own muscle power. This means you're free to copy and share these comics (but not to sell them). Nothing noticeable. Assuming you descend slowly and enter the atmosphere in a controlled manner, you'll soon encounter your next problem: Your pole isn't moving at the same speed as the Earth. I believe books are so valuable; they can be read and shared over and over again throughout a lifetime. At worst, your hands and the surface of the pole will both be converted into exciting new forms of matter, and then you'll be flung away and plummet to your death. I love the blog and was really looking forward to this book, but buying the kindle edition was a mistake.
Make sure you're tightly attached to the pole, since the wind and various shockwaves will be violently battering and jolting you around. Prev; Earth-Moon Fire Pole. The pole would be torn in half. There's one other cycle we can take into account to really nail down the Moon's ground speed. Note: While you're flinging yourself along, be careful not to drift out of reach of the pole.

First, let's get a few things out of the way: In real life, we can't put a metal pole between the Earth and the Moon.

In general, the fact that the Earth spins is very fortunate for you, and for the planet's overall habitability. What If?

Make sure to keep your speed low during the whole approach and descent—and, if necessary, pausing to let your hands or brakepads cool down—rather than waiting until the end to try to slow down. Try to avoid the tropical jet stream, an upper-level air current which blows in the same direction the Earth rotates.

First, let's get a few things out of the way: In real life, we can't put a metal pole between the Earth and the Moon. Reviewed in the United Kingdom on January 14, 2020. Some simply don't have fun answers, but he takes them a step further to make them fun! The Earth is pretty big, so you reach this point—which is known as the L1 Lagrange point—while you're still pretty close to the Moon. Do you believe that this item violates a copyright? Reviewed in the United States on February 18, 2017. When you're hanging onto the pole, there are three forces pulling on you: The Earth's gravity pulling you toward Earth, the Moon's gravity pulling you away from Earth, and centrifugal force[6]As usual, anyone arguing about "centrifugal" versus "centripetal" force will be put in a centrifuge. every 29 days or so. If you get up to escape velocity, then at the last minute remember that you need to slow down, you'll be in for an unpleasant surprise as you try to grab on to the pole. The bottom end of the pole makes a much smaller circle in the same amount of time, moving at an average speed of only about 35 mph relative to the center of the Moon's orbit: 35 miles per hour doesn't sound bad. With Family Sharing set up, up to six family members can use this app. This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 License.

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