Proxima Centauri is 4.2 light years away. That is 24,673,274,438,400 miles. Going at the speed of the Sun through the Milky Way, 492,150 miles per hour, it would take 5,723 years to get there. In 100 years the Sun has only gone 431,123,400,000 miles, or 7 percent of 1 light year...
I know the blue whale is the largest known animal to have existed on Earth, but can animals conceivably grow larger, or is that pretty much the largest animal you can expect to find in the universe?
How do I factor monomials, binomials, trinomials and quadratic equations?
Here are some more examples from the book.
24x^3y^2-20x^2y^2+16xy^2
x^2+5x+6
3y^2+8y+4
I'm in desperate need of help with factoring. Basically, how do you do it?
Below is an example of what I'm up against.
54c^2d^5e^3; 81d^3e^2
It wants me to find the greatest common factor.
http://www.rempub.com/80-activities-...algebra-easier
That is the book I'm working out of.
According to Wikipedia, there could be as many as 11 billion planets in the habitable zone of sun-like stars, with the closest potentially 12 light years away. That number goes up to 40 billion if you include red dwarfs. How would we even go about getting to the nearest Exoearth?
The best theories have the universe arising from a singularity 13.8 billion years ago, and have it expanding, becoming increasingly dilute and frigid for eternity. Do you think the Copernican principle holds for the universe and that we inhabit a small part of a vaster cosmos permanently beyond...
I finished Rees' Before the Beginning and am now reading The Shadows of Creation. At what point should I get out of the popular books and into text books?
I forgot to add these to the have read list:
The Mystery of the Missing Antimatter
Heart of Darkness: Unraveling the Mysteries of the Invisible Universe
Cosmos
Pale Blue Dot
How to Find a Habitable Planet
Cosmic Cocktail
The Theoretical Minimum: What You Need to Know to Start Doing Physics...
Here is what I have read:
carroll, sean from eternity to here
carroll, sean the particle at the end of the universe
deutsch, david the fabric of reality
gott, j. richard time travel in einstein's universe
greene, brian the elegant universe
greene, brian the fabric of the cosmos
greene...
I'm just curious how difficult it would be to accelerate a macroscopic object to speeds were relativistic effects become significant. The ISS is a big object, so I assume making igo as fast as the 'oh my god' particle would be difficult, to say the least.
to accelerate a macroscopic object to the speeds reached by protons at the LHC? want to accelerate an object the size of the ISS to the speed of subatomic particles in a collider. I would like to know how much energy would be required.
I know of Project Daedalus, Project Icarus, and Project Orion. These basically utilize pulse propulsion. In Daedalus and Icarus helium 3 and deuterium are combusted by a laser to create thrust. And in Orion nuclear bombs explode behind the craft to get it moving. All of these designs only reach...
Stuff related to general relativity about the warping of spacetime, black holes, wormholes, quantum gravity that doesn't involve superstring or M theories, time dilation and relativistic space flight, etc.
I never fail to be enraptured by special and general relativity, their extremes, the...
I've been reading Brian Greene's books and he says the math for describing even the simplest physical phenomenon in the real world is wildly complex, thus physicist use vastly simplified models. Since current math is insufficient to describe everything in the universe and a final theory, will...
I've read works by Kip Thorne, Brian Greene, Sean Carroll, Leonard Susskind and I get the impression that wormholes are highly problematic and are based on relativistic equations, but not reality. I want to know why wormholes are impossible.
What flora and fauna currently in the islands didn't exist there before being introduced by man over the eons? What did the islands look like before humans first set foot on them? Basically, how different were they as compared with themselves today? Was ancient Hawaii even covered in vegetation...
I read that stationary clocks on Earth experience time more slowly than clocks on GPS satellites, so the GPS clocks are calibrated to run more slowly to compensate. Since the satellites are in orbit, wouldn't that mean their clocks would be slower since they were moving faster?
This may seem weird, but after a day of acid reflux here goes:
Let's say you could shrink yourself down, and get swallowed alive by a healthy woman -- would her stomach be able to dissolve you bones and all? Or would you suffocate before feeling any considerable burning? Would you even feel...
Are there any theories with which the mass effect fields of Mass Effect and the slipstream space of Halo draw inspiration from? Is there any scientific basis for either, or is it complete fantasy?
http://rbsp.info/rbs/RbS/PDF/aiaa05.pdf [Broken]
That says 180 kg of fuel would be required for a 10 year voyage to the gravitational focus at 550 AU.
So that means that it will travel 51,125,693,998.5 miles in 10 years at 569,160 mph = .00085c
Would that be the ships maximum speed?