Tag Archives: physics

on interstellar and the illusion of time.

i saw interstellar last night and it’s a great movie. not perfect by any means, but it’s sci-fi and even Neil DeGrasse Tyson is okay with the ending.

many of the theories in the film are explored in the embedded NOVA episode, “The Fabric of the Cosmos: The Illusion of Time” which has quotes from physicists that sound like they could be buddhist monks – e.g. “everything that has ever happened or will happen – it all exists.” and from an NPR story on the show, “Our days certainly seem numbered. We long to know if this countdown to darkness is real, or simply the trick of a more limited perspective.”

for even more Deep Thoughts About Time, give a listen to the Radiolab Time episode and remember that all of this has happened before and all of this will happen again.

day 3250: empirically testing the physics of freefall and drag.

day 3250: empirically testing the physics of freefall and drag. I.

“poppi. can i go up on the flat roof and throw down this parachute i made? i want to test how many marbles i put in cup before it doesn’t float anymore.”

of course! because even if he doesn’t know he’s empirically testing the physics of free fall and drag with parachutes, i can still understand the fun of standing on the edge of a roof and throwing stuff off the edge.

and, amusingly, i remember being his very age and wondering how many garbage bags i would have to put together to safely carry me down from the top of a tree.

day 3250: empirically testing the physics of freefall and drag. II.

it floats!

he could put a few marbles in the cup before it became too heavy for the size of the parachute. it’ll be interesting to see if he figures out how to plot various surface areas against max weight carried.