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Everything posted by Nuke
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just an opinion, not sure thats what the aiu indented though. yea i kind of think the needed to define everything as planets, and then categorize those better. dwarf planets get one, you might have another for giant planets and terrestrial planets. i think id reserve the term planetoid for large things that haven't quite made it to hydrostatic equilibrium.
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its a dwarf planet, so yea. i view dwarf planets as a subset to planets. it even has the word planet in its classification.
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How Heavy is Reasonable In This Setting And What is TOO Heavy?
Nuke replied to Spacescifi's topic in Science & Spaceflight
just having your anti gravity engines operating asymmetrically can induce rotations. i think your real limits are structural. because a big structure is a complicated structure. you even run into this problem in ksp where you get huge oscillations that make things like docking and precision maneuvering impossible. huge cross sections make you susceptible to atmoshperic drag (in low orbits) not to mention space debris and dust at interstellar velocities. -
you sure it was beer he was drinking?
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as a mortal i always prefer building over buying, i figure being an immortal would just make more people do same. like i would rather have a built by hand amish desk than one out of a mass production facility. of course thats after the freebie '50s steel desk i found on the side of the road*. * getting it home and up the stairs was a massive undertaking, but it was junk and didnt mind the paint scraping off as i slid it up the metal grate stairs. i got it over here by using an old gardening cart that the previous tenants left in the shed as a makeshift dolly. i only had to move it 2 blocks but that was enough to reduce the gardening cart to splinters. the cats made short work of the family of mice living in one of the drawers. im always amazed by how often people throw away perfectly good things.
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yea time travel has always glossed over the fact that things in space move.
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when they do that at our place its usually just to inspect the fire equipment. i think its an insurance thing. they make sure the detectors all have batteries and make sure the fire extinguishers are full and that's the end of it. they also tell us that our unit is one of the cleanest in the complex. which is odd because i only really spot clean as needed and i sweep up all the cat hair every couple months (there's usually enough to make another cat).
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maybe try orbiter, its free, though i cant speak to whether its flight model is better or worse, but it did have a huge number of mods. ksp still ranks as one of the most fun newtonian simulators ive played, but some allowances were made for that (moar boosters).
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i guess a fudge factor (engineers call them coefficients) you can predict is called science. it always amazed me how aerospace engineers can reduce the complexities of fluid dynamics down to a couple of numbers.
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the airbus concepts use cryofuel, storing it in the fuselage. it has 3x the energy density of jet than jet fuel by weight despite being lower in volume, which provided you dont lose it all in additional weight of the tankage is better suited to an aircraft. the coldness of the fuel can also be use in a precooler if you wanted a hypersonic aircraft or as the cold side of any thermodynamic components, its effectively another form of energy storage.
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hydrogen may be a better option for energy storage in aircraft than batteries. lets ignore the problems with hydrogen manufacture for a second. you need electrical power to recharge batteries as much as you do to make hydrogen though the latter is definitely going to be less efficient. when compared with fossil fuels, those have to be trucked from the refineries to the airports, where as hydrogen manufacture can take place close to the tarmac using local grid and water supply. the fossil fuels can be burned at the power plants where you get carbon capture and waste heat scavenging. there is a lot we can do to clean up the power grid in both the short and long term. meanwhile jet engines dump raw exhaust directly into the atmosphere. im curious what airbus can do with its hydrogen concepts.
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do they react differently or is it that the motions do not accomplish the same thing while in freefall. the cat knows they need to turn but has no idea which way down is. in a normal fall that would become apparent quite quickly. its as if its trying to kill its rotation before it starts moving, but it never does. now that i think about it their fur would be able to sense the turbulence caused by aerodynamic drag. of course its the same problem with the inner ear. there is no data coming in, so the cat has no idea what to do in that situation. you expect a vector but it has zero magnitude.
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ive always seen those zero g cat videos and always thought it was just flight crews screwing around. never knew it was actual science. later that day everyone on the flight crew found a dead rodent in their shoe. the inner ear is effectively a biological imu. when it reads zero, the kitty panics. i recently bought a new cat tower. but after a week of it being set up only 2 of the cats use it. i tried to introduce the 3rd to it. it wobbles quite a bit and she is a large cat. so when she goes about hitting the tower's resonant frequency with her attempts at regaining her balance she freaked out. she panicked and i got winged by an errant fistfull of razorblades. fortunately i trimmed her claws recently (they overgrow if left to their own devices and poke her toes), but i could have been scrambling for a bandage.
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404 key not found ty again late.
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my key was stuck soy.
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that might work as energy storage and its scalable. you can always add more tankage or more solar power. not to mention it has other uses like rocket fuel.
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i read a paper about a lunar tbm that actually disposed of its waste heat the rocky debrits it created, once heated it would be loaded into a cart and dumped outside. you can bury a network of radiators under ground in a dark crater where its colder than the surface in sunlight. i don't expect it to be better than water cooling, but better than cooling by radiant heat alone (you would use both). alternatively put a solar satellite in lunar orbit and beam power to the surface. or land at the poles and build a solar tower high enough to stay in sunlight all the time.
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anyone who says its hard to herd cats have never tried to make a tuna sandwhich in their presence. you cant open a can of anything without them showing up to investigate.
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Replace Kirk and Spock With Andy Griffith and Barney
Nuke replied to Spacescifi's topic in The Lounge
actually im pretty familiar with both shows. i was just making a joke. i dont think i would want barney on a star ship. he would have the lunacy of reginald barclay but without the redeeming quality of above average intelligence. -
Replace Kirk and Spock With Andy Griffith and Barney
Nuke replied to Spacescifi's topic in The Lounge
can we replace wesley crusher with opie? -
letting everyone have an interstellar capable space ship is a lot like letting everyone carry their own nuclear weapons. even intra system torch ships can pose a threat. you might have a dune like situation where everyone can have slower than light ships, but the ftl ships are controlled by an entity who's interests lean to the non-destructive.
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no charlton heston, no damn dirty ape.
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i dont use smart phones either for entirely different reasons. expense, lock in, binding to expensive data plans, lack of upgrade paths for the firmware, blatant anti-consumerism practices in the cell phone industry, e-waste, the fact that i hate touch screens with a vengeance and don't like to squint, and of course the constant plug in giving everyone in the world the opportunity to bug me. as for your hand pain that probably has more to do for lack of ergonomics than a little bit of em radiation. they try to cram as much processing power into as small a form factor as possible and all other concerns go out the window. you either have to crane your neck to use it or hold the phone in an uncomfortably high position. give me a full keyboard and huge screen any day.