13,821 reputation
24169
bio website arXiv.org
location Toronto, Canada, eh?
age 26
visits member for 2 years
seen Apr 22 at 17:36

I'm a cosmologist. I did my undergraduate in space engineering (rocket science) and my graduate degree in cosmology. I enjoy Dark Energy, curvature, and modified gravity, but I mainly focus on inflation.


Apr
22
comment Flat universe a torus?
A coffee cup. Or at least the shape of one
Apr
22
comment Dark energy vs. gravity
Let's assume, for the moment, that space expansion did work at our scale and in the presence of gravity. It would take more than 19 years for the pen half a metre in front of you to move more than a few atoms' widths away from you. Space does not expand very fast
Apr
22
comment Flat universe a torus?
Anything homeomorphic to a torus would fulfill the criteria
Apr
22
awarded  Yearling
Apr
22
reviewed Reopen Are concepts and results of computation science used in physical theory?
Apr
22
reviewed Close A question about Thermodynamics
Apr
22
reviewed Close In light of quantum physics and light-speed, what is the correct equation for force (instead of F=MA)
Apr
22
comment In light of quantum physics and light-speed, what is the correct equation for force (instead of F=MA)
$F=ma$ is already incorrect. The equation of force is always $F=\frac{dp}{dt}$, the change in momentum over time
Apr
22
reviewed Reviewed Is Archimedes' principle valid with moving objects?
Apr
22
reviewed Reviewed Evaporation of water
Apr
22
reviewed Reviewed Is it possible to power a black hole with an antimatter engine?
Apr
22
comment Is it possible to power a black hole with an antimatter engine?
A black hole doesn't need to be powered. It simply exists.
Apr
22
reviewed Reviewed Why is the water in a cup not inclined (opposite the cup) when the plane takes a turn?
Apr
21
answered Does the universe have a different age to different observers?
Apr
21
comment Did God have enough water to flood the earth during Noah's time?
@Danu Hydroelectricity is a very clean energy source. Heaven would probably use clean energy
Apr
21
comment Did God have enough water to flood the earth during Noah's time?
No, there is not enough water stored in clouds and ice. There may be almost enough stored in minerals in the mantle, but that's not yet verified. Even then, given that you'd need to add about 3-5 km of water across the globe, there isn't enough water. Furthermore, that amount of water does not fall in 40 days and nights. We are talking about filling the average depth of the Atlantic ocean with rainfall over the span of a month all across Earth. A 600 year old man is not the only impossible thing in that description
Apr
21
comment Does the universe have a different age to different observers?
Ummmm, the universe is more like 93 billion light years wide. Not 12, not 13.8.
Apr
21
comment Are the words “coincident” and “simultaneous” considered synonymous? Else, please explain the difference
I still have to agree with 12262, the only usage of "coincidence" I've ever seen in relativity is to refer to a singular spacetime coordinate. A single event. Multiple things are coincident if at the same spacetime coordinate. They must coincide at the same event. This means simultaneity is necessary as is spatial colocation.
Apr
21
reviewed Looks OK double of temperature
Apr
21
comment Why is gravity so weak?
@JohnDuffield This is a sought after and unanswered question in physics. To answer it at all would mean you'd have grant money poured all over you