By: D. Vogt
Since the advent of major national space programs in the 1950s, forward-seeing scientists have assumed that we will soon not only be landing spacecraft on the Moon, but setting up permanent bases or colonies there. Unfortunately, to date this has not happened, more, it must...
By: D. Vogt
A black hole, long a trope of popular science fiction, is a theoretical region of space in which, as a result of its mass, the force of gravity has become so immense that nothing can escape it, even nearby light. This is why the black...
Astro physics - Stellar Distances: Light years, parsecs and AU's explained
By: D. Vogt
Because distances in deep space are so vast, astronomers have adopted a number of stellar distance units to make them more manageable. Three of the most important of these are the astronomical unit (AU), the parsec, and the light-year. Without such units, it would quickly...
What is the technological singularity?
By: D. Vogt
A technological singularity is a point at which capability for technological progress becomes both immense and self-reproducing (that is, one improvement promptly makes possible another improvement, allowing for rapid and indefinite progress). In particular, it refers to a theoretical point in the future at which...
What are the general design principles of a spacecraft
By: D. Vogt
Spacecraft are the most complex transportation systems ever built by humans - and the International Space Station, the most successful semi-permanent abode in space yet, is also the most expensive structure ever built. For such technically complex devices, then, obviously there are a very large...
Exploring advanced chemistry degrees
By: Ernest Capraro
If you’re considering a graduate degree in chemistry, congratulations, you’re about to explore a fascinating realm. You’ll have a bit of decision-making before you can really get started. There are literally hundreds of options to consider, as you look at the degree...
Primary vs. secondary cosmic rays
By: D. Vogt
The difference between primary and secondary cosmic rays is essentially one of convenient classification rather than of fundamental type: primary cosmic rays are those which are created by external sources like our own Sun, while secondary cosmic rays are those which are created when primary...
By: D. Vogt
Since the dawn of science, there have been a wide variety of naturalistic theories proposed to explain how the universe began. These stand in addition to earlier creationist, religious, and mythological accounts of the origins of the universe and of humanity. Today, the most influential...
What keeps a ship afloat
By: Cyn P.
Have you ever thought why a small stone sinks in water while a big ship can stay afloat in the sea? Well, physics can explain this. In 212 BC, Archimedes who was a Greek mathematician, physicist, engineer, inventor and astronomer discovered a principle, now known...
How to create a warp drive
By: D. Vogt
A warp drive is a theoretical type of space propulsion drive which would allow spacecraft to travel faster than light by somehow warping or distorting spacetime around them. Science fiction writers, and certain futurism-oriented physicists, envision the warp drive as an important building block for...

 

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