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PHYSICS of STARSHIP BATTLES-lasers and kinetic energy

ShakaUVM says...

The new BSG does a pretty good job with movie physics. (Besides the FTL drive, I guess.)

A friend of mine used to work for Cymer testing their million dollar lasers. He fell asleep during a test run and burned a largish hole through the wall that's still there today (another friend works in his exact job now... for some reason, my first friend is no longer there).

They're powerful enough, though, and the video gets the physics completely wrong!

E = hf is the formula for A SINGLE PHOTON, not for a laser. The energy delivered by a laser equals the energy put into the laser (minus any inefficancy losses). So a perfectly efficient zetawatt laser shooting through a vacuum will deliver a zetawatt of energy to the target, at any distance, at the speed of light. That's a pretty damn good weapon.

Also, he fucked up the mass section of the video also. Only massless particles can travel at the speed of light. So no kinetic energy for you traveling at the speed of light! (Photons carry momentum but not mass, and kinetic energy is defined by the mass-velocity product). Accelerating a asteroid or whatever towards the speed of light does not "cap out" at .5mv^2 -> mc^2. You can continue pumping energy into a asteroid heading towards earth. It's apparent velocity will not change, but it's apparent MASS will. Hence, conservation of energy.

Essentially, I think this guy doesn't know physics very well - that's all high school physics stuff.

Stargate: Universe Comic-Con Trailer

EDD says...

I've been moderately enthusiastic about the Stargate franchise for years now (and with their recent feature movie's plot directly implying that all religions are false, how could I not be ) but even disregarding that, this looks like a serious attempt at a decent knock-off of all the good stuff BSG was praised for.
Me likey.

Palin Resigns as Governer of Alaska!

Virtuality is Good SciFi (Scifi Talk Post)

gtjwkq says...

I loved the concept, but I hated the choice of characters. It's like in BSG: the only reason I watched that awful show was Commander Adama (and the space fights), he was THE MAN. Every other character was an overdramatized idiot who always messed things up.

What is up with this trend? I'm so tired of "humanized" characters, screwed up immature ppl who have such a hard time getting along and fight over everything.

Who would select those bozos for a 200 billion dollar space mission?

Virtuality is Good SciFi (Scifi Talk Post)

EDD says...

Have been looking forward to it since almost a year ago I think, when I first heard about it. What intrigued me about it was the premise, the creator (BSG's Ron D Moore), the cast and pretty much every other detail that was out there at the time. Such a shame about FOX doing what it does best - seemingly almost purposefully killing potentially great shows with their fucked-up 'executive decisions'.

Thanks for giving the heads up though - I'll eagerly check it out asap

True Blood Opening Credits

youmakekittymad (Member Profile)

Moodonia hits Gold 100, blows up Alderaan to celebrate (Scifi Talk Post)

What's the best Star Trek Series? (User Poll by Throbbin)

radx says...

Why I'm the third voter for Enterprise?

Quite simple actually: the internet. I didn't have broadband until 2002 and Enterprise was the first show that I downloaded, because I missed it on TV. And who would have thought that shows are much more enjoyable without cheap-ass dubbing? Not me, frankly. Never thought about it before.

Tried TNG and DS9 later in English as well, but by then, BSG had appeared and made everything look rediculous in comparison.

99 Balloons

Black & White - Intro

Numinar says...

I was so hyped for this game, and it is a work of art, but I was and still am mad that they went from the 500 levels in Populous to the 5 in this. And only 3 of them were that sandboxy anyway. What about 10? 15? but 5! Ouch!

Love the BSG/Homeworldesque eastern chanting hoedown!

You don't fuck with Voyager

radx says...

I like the evolution towards more dynamic combat in Star Trek tv shows over the years, but now that BSG has seen the light of the day, it all seems so boringly static.

What is the best sci-fi/fantasy movie series? (User Poll by Throbbin)

gwiz665 says...

I voted Matrix - as the only fucking one, you ingrates - because it was the one the appealed to my brains the most, with Star Trek as second choice.

As pure movie experience, I'm not certain. Star Wars was a great experience (Lightsabers - without those, Star Wars would never have been popular. You all know it.), but ultimately a simple story about Good vs. Evil. Same with Lord of the Rings and Harry Potter. Harry Potter has the added value that you see the kids growing up, so there's like teenage development going on as well. Star Trek is a crappy movie series, but it's still good sci-fi - though I suppose the TV series is superior to the movies.

Matrix had both the movie experience layer and the brain boogling aspect down, even if they dropped the ball in the last one. It was not nearly as big of a let down as BSG, for instance, but it still had way too many unanswered questions - wtf was the gold code Neo saw? In the I think it was the most interesting and interpretable story and therefor it got my vote.

Caprica (Scifi Talk Post)

gwiz665 says...

It has nothing to do with the fact that there were gods in the universe, it's that it's pulled off so enormously craptacular as they did in the BSG finale.

Pure shit over substance.

Caprica (Scifi Talk Post)

dag says...

Comment hidden because you are ignoring dag. (show it anyway)

^For me, at least, it was not the mere existence of deities that offended me. As I mentioned before, I don't mind a bit a god in my SF. No, the problem was that God was the answer to all of their major plot point revelations. It's a cop out, and a huge let down to those of us who assumed the writers had thought about where the story was leading. Pure style over substance.



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