Ten Ways Space Travel Isn’t Like Television or the Movies
Posted in Sci Fi by Jonathan10. There is no sound in space (rumbling engines, electronic beeping, laser blasts, etc.)
You’ve probably heard this fact stated before by your high school science teacher or some killjoy walking out of a movie theater: If movies were trying to be scientifically accurate, there would be absolutely no sound out in space. That means no booster rockets rumbling, no laser blasts during an epic space battle; just pure silence. Space, by it’s very definition, is made up of absolutely nothing. Since sound is caused by vibrations through a medium — air, water, etc. — there’s simply no way for sound to transmit over any distance. Of course, watching almost any action scene from Star Wars with the mute button on would be incredibly boring, so filmmakers usually get a pass for this one.
9. It takes a really loooooong time to get anywhere
In most movies, traveling to another solar system takes about as long as a cross-country road trip. In reality, the distance between planetary bodies is so great that it would take much longer than the average lifespan of a human to reach them. The nearest star to the sun is still 25 trillion miles away from Earth. Even NASA’s fastest rocket would take over 100,000 years to get there.
8. Wormholes would not be useful for space travel
In many movie plots, wormholes are a great means for people to travel large distances almost instantly or even travel through time. But there’s a pretty good reason science fiction writers often pull a wormhole out as an easy plot device though: they’re only theoretical. Scientists have theorized about the existence of wormholes since the 1920’s, but there’s really no evidence that they could be used for space travel, other than mathematical equations. Even if they could act as a portal from one place to another though, they still might not be very useful since some theories say they would be microscopic and only last for a fraction of a second.
7. Traveling at light speed would rip a space craft apart
Several movies use light speed travel as an easy solution to having spaceships travel the enormous distance between galaxies. Traveling faster might seem like the best way to overcome the distance problem, but then it just creates a new problem with all the space debris that would tear the ship apart. For example, the Hubble Telescope has had numerous holes punched in it from meteorites the size of dust particles, and that’s a relatively slow moving vessel. If a ship were to travel at the speed of light, it wouldn’t make it across the Solar System without being reduced to dust itself.
6. We would not be able to communicate with aliens right off the bat
The English language — or any language for that matter — is the product of millions of years of cultural evolution, which means countless coincidences brought us our means of communication for today. With that in mind, just what would be the odds of bumping into an alien species and being able to converse with them at all? Never mind that the chances of finding an intelligent species on another planet are astronomical, just how likely would it be for the Star Trek crew to land on an alien world and instantly start talking with the inhabitants?
5. Asteroids do not clump together
How many movies feature some intrepid space explorer fearlessly diving into an asteroid field to escape an enemy? Unfortunately for those pilots, most asteroids don’t clump together like that. True, our own Solar System has an asteroid belt, but even that is spread out enough for man unmanned spacecraft to pass through. Most asteroids are simply massive chunks of rock floating along their own path, independent of each other.
4. There cannot be fires/large explosions in space
For the same reason that sound cannot exist in space, neither can fires or large explosions. Fire needs oxygen to survive, which definitely doesn’t exist in space. You might get an outburst of energy during an explosion on a spacecraft and maybe even some quick flames burning up leaking oxygen, but it wouldn’t be anything near the spectacle of, say, the Death Star exploding in Star Wars.
3. People do not move in slow-mo in zero gravity
It’s hard to say whether it’s due to some misguided acting or a poor understanding of physics, but astronauts are often depicted moving in slow-motion when they’re in zero gravity. It’s probably because anytime you see a video of real astronauts in space, they’re just floating slowly around the cockpit. What people don’t always seem to notice though is that the rest of their body is still moving normally, and not as if they were underwater.
2. Space exposure is almost instantly fatal
There doesn’t seem to be a single movie out there that accurately depicts what happens to a human body that is exposed directly to the vacuum of space. They either show a person simply suffocating, freezing, or even exploding from the lack of pressure. Unfortunately, the truth is much worse than any of those scenarios. Thanks to Henry’s Law the drastic change in pressure would cause all the liquid in your body to evaporate at once, from your saliva to your blood to your urine. Because of this, your body expands to about twice its size, while you slip into unconsciousness (don’t worry, the whole process takes about fifteen seconds). Within a few minutes all the liquids and vapors remaining in your body will be sucked out into the void, leaving a dried husk of a corpse behind. And no, not all of this is speculation, as a couple of astronauts have actually come close to going through this whole ordeal and were quickly rescued.
1. Not all planets have the exact same gravity as Earth
In every movie where humans travel to different worlds, they might find a different climate or atmosphere, but they almost always encounter gravity similar to Earth’s. This works for a story that revolves around humans exploring a new planet, but the odds of them landing on a planet with tolerable gravity are slim. Even in our own solar system there are planets with enough gravity to crush a person along with planets that would barely hold a person down.
15 Inventions Inspired By Science Fiction
Posted in Sci Fi by admin15) Cell Phones
When the first flip phones were produced, many people commented that they looked like the communicators in Star Trek. That’s no coincidence. Martin Cooper, the inventor of the first handheld mobile phone, has credited Captain Kirk’s nifty gadget with inspiring the whole concept of the portable phone.
14) Submarine
Submarines have been around since the Civil War and even used in combat. However, it wasn’t until Jules Verne published his classic 20,000 Leagues Under the Sea in 1870 that engineers began to envision more advanced submersibles that could probe even deeper into the ocean.
13) Electronic Book Readers
In most science fiction, paper is a thing of the past, and some recent gadgets show a push in that direction. Owners of e-book readers like the Kindle have Douglas Adams’ The Hitchhiker’s Guide to the Galaxy to thank for first describing a portable, paperless reference book.
12) Powered Exoskeleton
Probably the most famous scene in the second Aliens movie is when Ripley saves a little girl using a hydraulic exoskeleton. Someone in the military seems to have taken notice, since engineers recently unveiled an exoskeleton that helps a person lift 200 pounds like it was nothing at all. One inventor in Japan even went the extra mile and developed a functional suit almost identical to the one in the movie.
11) Home Theaters
Ray Bradbury’s Fahrenheit 451 featured very little in the way of high tech gadgetry, with the exception of special “parlours” in people’s homes that would have large television screens on one or more walls complete with surround sound systems. Today, you can find that in your average suburban home, except we call them “home theaters.”
10) Computerized Language Translation (Hitchhiker’s Guide)
“Babel Fish” wasn’t just a random name AltaVista came up with for their web translation software. This was actually an alien species from The Hitchhiker’s Guide to the Galaxy that could translate any language after being put into a person’s ear.
9) TASER
When Jack Cover developed his first prototype for a less-lethal alternative to guns, he gave it an acronym that stands for “Thomas A. Swift’s Electric Rifle.” Cove chose the name after the hero of a science fiction series he had read as a child, one of which featured an “electric rifle” that was used for hunting.
8 ) Computer Viruses
Hey, no one said science fiction only inspires good inventions. When researchers accidentally created the first computer virus in 1975, they described it as a “worm.” The term was taken from John Brunner’s novel, The Shockwave Rider, in which a “tapeworm” begins to infect computers worldwide.
7) Orbiting Satellites
Author Edward Everett Hale first explored the idea of a satellite in his short story, “The Brick Moon,” but it was famed sci-fi writer Arthur C. Clarke who first proposed satellites as a means for mass communication. He wrote an article in 1945 that described communication devices hovering in orbit to provide high-speed global communication. Seven years later, Sputnik was launched.
6) VCR/DVD Player
While most of the world was marveling at the invention of motion pictures in the 1890’s, H.G. Wells was already thinking of ways to make it better. At one point in his novel, When the Sleeper Wakes, a man discovers a machine that seems to store and play individual movies for entertainment.
5) PDA or Pocket Computer
In 1974, when most computers were large enough to fill whole rooms, Larry Niven envisioned a pocket-sized version in The Mote in God’s Eye. The “pocket computers” are mostly used for mathematical calculations and note taking, but with their communication functions, Niven might as well be describing a Blackberry or an iPhone.
4) Robots (R.U.R. by Karel Capek, Metropolis)
The idea of constructing artificial life has been around for centuries, but the term “robot” was first introduced in Karel Capek’s play, R.U.R. (Rossum’s Universal Robots). However, it wasn’t until the 1927 film, Metropolis, that people began seeing robots as humanoid machines that could be controlled by a programmer.
3) Space Travel
Even though his 1865 novel, From the Earth to the Moon, was meant to be a comedy, Jules Verne did some serious calculations to back up his tale of three men trying to travel to the moon using a cannon. Some of his theories and equations turned out to be surprisingly accurate to those used in the Apollo missions, and he even correctly predicted that weightlessness would exist in space.
2) Internet
William Gibson’s book, Neuromancer, simultaneously set the basis for the cyberpunk genre as well as the internet (or more accurately, the World Wide Web). In his dystopian world, almost everyone can access a global computer network using special brain interfaces, which allows everyone on the planet to exchange information instantly. Sound familiar?
1) Atomic Bomb
It’s not hard to imagine a huge explosion, but Robert Cromie envisioned the means to do so that would eventually become reality. In The Crack of Doom, he wrote about a weapon that used the energy of an atom to decimate nearly two square miles of land. Over four decades later, the Manhattan Project was well under way.