If your student loan is a private loan, then you seriously need to refinance the next time you have 30 minutes of free time. Look through earnest.com, credible.com, and sofi.com. If you find a cheaper rate at credible, don't sign up there but visit the actual company's website as credible is an aggregator of sorts and you should get a slightly lower rate going through the actual site. You might want to look at... Source: about 2 years ago

Sofi.com/ey, .375% rate discount when you refinance. Although tbh Earnest has given me the best refinance rate I could find. Source: over 2 years ago

I played a PC game called "Osmos" (http://osmos-game.com/) like back in 2012 or so. It has all this electronic ambient music as the soundtrack. However, the soundtrack is not created for the game. Rather, the soundtrack is a selection of pre-existing tracks already produced by a few electronic music artists. The link above is one of my favorites. Source: almost 2 years ago

You can physically demonstrate orbit with some fabric stretched over a frame, but I really think video games are going to be your best friend here. Osmos (Free demo, $5 full) is a great starting point that uses simplified gravity in two dimensions. Orbit (Free app, $5 on Steam) is another, similar game to introduce orbit. Once you've graduated to three dimensions, Universe Sandbox ($30, $20 on GOG) will really... Source: almost 2 years ago