Monday, December 29, 2014

Astro Questions: How Much Energy is Needed to Leave the Galaxy?

This is the third and final part to this thicker-than-you-think astro question of

Will we ever be able to travel outside the Milky Way Galaxy with either a manned or unmanned vehicle/device given the lifespan of humans and the restrictions on speed given by the speed of light?

You can find parts 1 and 2 here and here (respectively) dealing with some of the difficulties of traveling at light speed, and then actually traversing the galaxy given its magnificent size. Let's now think and talk about just how much energy we'd actually need.   


3. Blah blah, what's all this about infinite energy? How much energy would we actually need?


Sunday, December 21, 2014

The Price of Pie


I woke up this morning after having a dream that my future kids (no doubt a little more brown than above) opened up a stand where they sold apple pies. They would set up the stand on a busy street corner, sell the pie in slices for some amount per slice, be wildly successful, and they'd get all their spending money off of that business. When I woke up, I found myself wondering if that was actually doable. Or rather, how much would it cost to sell an apple pie?

Wednesday, December 17, 2014

Astro Questions: Leaving our Galaxy

So this post is a continuation of the last major astro question:

Will we ever be able to travel outside the Milky Way Galaxy with either a manned or unmanned vehicle/device given the lifespan of humans and the restrictions on speed given by the speed of light?

I addressed the first part of the question, about the difficulties of traveling at light speed. Now, I want to start with the assumption that we can already reach light speed, and talk about just how damn large our Milky Way galaxy is. So, let's begin:


2. Traveling at light speed, would we be able to travel outside the Milky Way with either manned or unmanned spacecraft?