its just one of those days. im almost done with the last of my finals for my last semester at community college. all that seperates me from now and my trip to university in the fall is 3 1/2 months, two more finals and a six week summer class. so much to be excited about and yet all i wanna do is get in the car and go somewhere far away from here so i dont have to think. im not sure if its depression or being afraid of growing up..
today is going to be a good day, with much productivity. <3
The ultimate fate of an expanding universe
Top: Diagrams of three possible geometries of the universe: closed, open and flat from top to bottom, corresponding to a density parameter Ω0 which is greater than, less than or equal to 1. The closed universe is of finite size and, due to its curvature, traveling far enough in one direction will lead back to one’s starting point. The open and flat universes are infinite and traveling in a constant direction will never lead to the same point.
Bottom: The age and ultimate fate of the universe can be determined by measuring the Hubble constant today and extrapolating with the observed value of the deceleration parameter, uniquely characterized by values of density parameters (ΩM for matter and ΩΛ for dark energy). A “closed universe” with ΩM > 1 and ΩΛ = 0 comes to an end in a Big Crunch and is considerably younger than its Hubble age. An “open universe” with ΩM ≤ 1 and ΩΛ = 0 expands forever and has an age that is closer to its Hubble age. For the accelerating universe with nonzero ΩΛ that we inhabit, the age of the universe is coincidentally very close to the Hubble age.
(via proofmathisbeautiful)
got accepted to my second choice. now i have options as to how im going to become a chemical engineer. :)
living the dream kids. i got accepted into my top choice of the three schools i applied to. im going to be a chemical engineer. :)
greatest. thing. ever.
Frank Reynolds: A woman in politics is like a donkey doing calculus.
Dee Reynolds: There are plenty of good women politicians.
Frank Reynolds: Name one.
Dee Reynolds: Um, Senator Hillary Rodham Clinton
Frank Reynolds: Awful!
Dee Reynolds: How is she awful?
Frank Reynolds: Hates freedom.
(Source: monkeysforhelping, via proofmathisbeautiful)
(Source: philphys)
(Source: philphys)
Doppler effect — soundwaves emitted by a stationary source, a moving source, a source moving at the speed of sound (mach 1), and a supersonic source.
(via philphys)
