nhnifong

Appeal to a child's appetite for rebellion. Whether their parents taught them superstitions that that come from religion, tv commercials, or old chinese farmers, it's superstition nonetheless. Kids at the right age will readily accept other teachers as an authority over their own parents because it give them an ally in their rebellion against their parents discipline.

KSP doesn't really have a story or characters. pretty much everything is fanon from what I can tell (other than bill bob and jeb's braveness and dumbness scores, I think that was just Harv) You should see all the crazy art chobit came up with! Welcome to the forums.

Welcome to KSP forums where the orion debate never dies!

To re-phrase the question, how fast could SLS eject one cube sat from the solar system? well, the SLS is designed to put larger payloads in orbit. so, you would put a cube sat an extra stage or two of rockets up there as a payload. What you used for propulsion in that final stage would make the difference between ejecting at 10 km/s vs 40 km/s

Will Philae remain attached to the comet throughout it's near-the-sun period when the comet's nucleus is disintegrating?

I can't load this, it has a generic error. can you show a picture of it?

NASA will go to Mars I hope. It seems to be what they are preparing for.

Actually Duna's atmosphere is so thin that the ISP is well above 400 even at the top of a mountain.

Try using a 4 engine cluster of whatever you've got. (If you have the cubic and the fuel lines to arrange it)

The minimum you need is to hover is 0.3 but aim for 0.6 for ascent

Almost nothing makes me angry any more. This is a combination of a gradual change of attitude that comes with age and the fact that I have been unusually lucky. But, to name something anyways: recently my landlord changed the address to which rent checks are to be sent, and my automatic payments were not getting to her. she made two attempts to contact me, but instead of calling or emailing me, she just posted notes on the back door (which I never open). So by the time I found out, I was going to be evicted. Thankfully As soon as I realized what was going on I called her and explained and she understood my situation, waived the fees and canceled the eviction process.

If the only reason we need "gravity" on spacecraft in the first place is human bone and muscle degeneration, then trying to create artificial gravity is a bit of an over-engineered solution. It could be solved with something as simple as suit with elastic bands, or with drugs and gene therapy to take another angle.

Perhaps as a long term sort of passive camera, the satellite could be in a long period orbit, synchronous with the earth. And it had an internal part that was spinning. Once an orbit, a pair of windows would align, exposing a piece of film that was also passively aligned by a slowly spinning part. But honestly, I don't think it will last 5 billion years. As many have said, the sun is expected to grow to a size which engulfs the earth, putting in in lunar orbit or underground there is not an option. I think a long period comet-like orbit with a perigee outside of mars is probably safe. Making it relatively inclined should decrease it's probability of a collision or a close encounter. The only power source that will last long enough is the Sun itself. Perhaps the solar panels would have to be shielded, and then only exposed at perigee when sensing and error correction is performed.

You're absolutely right Themohawkninja . I forgot the peta comes before exa.

Let's say we wanted to leave a record of ourselves that would outlast the sun, recording events periodically in the solar system as it went. The design criteria you must try to meet are: The satellite must contain 100 petabytes of cold storage, containing compressed records of human history. The satellite must contain 15 additional petabytes of writable memory used for taking a yearly picture of the sun, picture of the earth, and other measurements. The data must be recoverable with as much accuracy as possible by a human-level civilization 5 billion years from now, after the death of the sun. How would you go about designing such an impossible thing? What compromises would you make? How heavy would it have to be? what would you use as a power source? Correction: petabytes. That's what I did my math based on. WHoops! --- How I would do it: 100 petabytes of cold storage will fit on 16666 Holographic Versitile Disks which, if they have a mass of around 10 grams each, is a mass of 166.6 kg. This cold storage will also be redundantly stored in about 50 kg of DNA. The additional 15 exabytes of writable storage will be triply redundantly stored on HVD discs, 15 kg of radiation hardened flash memory chips, and encoded in DNA. The total memory weight is 363 kilograms, it will all be placed inside a 200 kg shield to protect it from radiation and cosmic rays. Error checking systems and supporting machinery may total 100 more kg. For power, I'd use an extremely low power RTG with Uranium-238. no attitude needs to be maintained, and no transmissions need to be made. The spacecraft is expected to be physically recovered. The only thing drawing power is the sensors once a year and the error correction mechanisms. I'd put this is a highly inclined circular orbit around the sun with a periapsis of about 2 AU.

Perhaps it's a sort of bucket brigade where the gravitons are transmitted up the well a bit at a time and the relative speed between any two particles is still less than c.

Very interesting video.

Pluto-Charon isn't entirely out of the question right? It supposedly has a few tiny moons that we're not sure about. When New Horizons get's there we're have a better picture.

When the Falcon 9 1.1 first stage reaches the upper atmosphere, the gas begins expanding in what appears to be a highly non-uniform pattern. I was wondering if this pattern represents an inefficiency. Would the ISP or the thrust of the rocket as a whole be higher if the gas expanded uniformly? Could something be done to the profile of the ends of the nozzles to even it out?

I would use this very frequently. I'm constantly thinking of my rocket designs in terms of the nearest symmetric design and it would be very handy to have this.

Making light, compact ships without the cubic strut

30 is hot, 20 is pleasing. 10 is frigid and 0 is freezing. a little rhyme to help you.

The US National Weather Service doesn't report wind chill, probably due to it being misleading But of course the TV weather channels report it as well as filling their broadcast with all kinds of other stupid stuff. It seems like just being on a TV can make anything stupid, even weather. How did this ever get started? In my opinion, it is that TV was a doomed medium from the start because the viewer cannot participate. There have always been alternatives, and recently those alternatives are pretty good, so TV's audience grew smaller and selective pressure drove it to be a collection of the stupidest people in any population.

People would have better posture if they didn't slouch. Tails would sort of keep you from slouching, lest you uncomfortably smush your tail bones into your back.