Activity for manassehkatz
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #283359 |
Post edited: spelling |
— | over 3 years ago |
| Suggested Edit | Post #283359 |
Suggested edit: spelling (more) |
helpful | over 3 years ago |
| Edit | Post #281707 | Initial revision | — | over 3 years ago |
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A: How to protect intelligent fluids from heat damage? This is not a bug, it is a feature The gun isn't hot until you fire it. That first shot will, due to the trauma, cause the jam to solidify and block the bullet. At the same time, the heat will deactivate the jam, but the solidification has already happened - essentially in the death throes of the ... (more) |
— | over 3 years ago |
| Edit | Post #277405 | Post edited | — | over 4 years ago |
| Suggested Edit | Post #277405 |
Suggested edit: it's->its, scareing->scaring (more) |
helpful | over 4 years ago |
| Edit | Post #232590 |
Post edited: |
— | over 4 years ago |
| Edit | Post #232590 |
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— | over 4 years ago |
| Edit | Post #232590 |
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— | over 4 years ago |
| Edit | Post #242841 |
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— | over 4 years ago |
| Comment | Post #275803 |
To me, "Creative Science" sounds too much like "Creative Accounting". (more) |
— | over 4 years ago |
| Answer | — |
A: When will the last unambiguous evidence of mankind disappear? Enriched Uranium Uranium 235 has a half-life of 703,800,000 years. The concentration of U-235 relative to U-238 is fairly low (0.72%) in nature. Humanity has managed to increase that quite a bit. Perhaps a bit more than we should. In any case, even if the surrounding concrete, steel and other materi... (more) |
— | over 5 years ago |
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A: Is this sudden global cooling scenario plausible? Been there, done that! This apparently happened already 1,500 years ago. Scientists at Cardiff University, UK, believe they have discovered the cause of crop failures and summer frosts some 1,500 years ago "“ a comet colliding with Earth. So the only part that is tricky, other than fine-tuning the ... (more) |
— | almost 6 years ago |
| Answer | — |
A: Aliens performing successful medical procedure on humans at first contact? DNA DNA may be a key. If they are DNA based and have sufficiently advanced technology, they may be able to use a single cell from a human to decipher their entire DNA structure and meaning, including how everything is supposed to work. But that may be a bit much, so they can instead use... Surgery ... (more) |
— | about 6 years ago |
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A: What is the evolutionary advantage of albinism in cave-dwelling animals? Best use of available light Caves are naturally dark. But sometimes there is a little light - either reflected from the entrance to the back of the cave, phosphorescent minerals, or perhaps artificial light in some form. But the light is limited, so the best visibility is provided by the highest con... (more) |
— | over 6 years ago |
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A: What light colors/bulbs should be used inside a spaceship? LEDs LEDs are currently the most energy efficient readily available lighting system. Better things may come along, but the reason you read about fluorescent light bulbs in older novels is because they were the most efficient at the time the story was written. Wait a minute, we have fusion/warp/anti... (more) |
— | over 6 years ago |
| Answer | — |
A: How in a post nuclear apocalypse setting could a group of survivors set up a "Internet" or "Internet-like" service? It only takes a generation or two to build an internet from scratch Think about it: One of the key predecessors of the Internet, ARPANET started in 1969. Look where we are today - or even 20 years ago. It did not take long to go from "nothing" to the Internet as we know it. That was starting with: ... (more) |
— | over 6 years ago |
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A: Trans-humans: neural chip implants and the Dunning-Kreuger effect Pure Knowledge != Knowing What To Do With the Knowledge The effect will be in some ways better and in some ways worse, but it certainly won't go away. Knowledge of a domain is not the same as knowing what to do with that knowledge. Some examples: Math If you have a website with tables for trigon... (more) |
— | over 6 years ago |
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A: What materials would be needed to build a homemade spaceship, in the apocalypse? Don't build a rocket ship. Build a good ol' fashioned airplane. He doesn't need a rocket ship. While Elon Musk is saying BFR can be used for point-to-point travel on Earth, the resources needed to build a BFR are HUGE. Rockets are an extremely unforgiving technology, and the resources needed are sig... (more) |
— | over 6 years ago |
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A: How would a building handle being submerged? The building structure may do OK, but the devil is in the details Gary Walker gave a good comprehensive description of what will happen to the structural materials - wood, brick, steel, etc. But there is a lot more to a modern building: Electrical Everything electrical - wiring, HVAC equipment, ... (more) |
— | over 6 years ago |
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A: Oh crap, it's 2020ad, and the Earth is about to explode! Can we make it to the stars? Elon Musk to the Rescue If you asked this same question 10 years ago, I would be as pessimistic as many of the other answers. But this is 2020. The Falcon Heavy is in production. Starship is on the way. Elon Musk has, many times, said that his goal is to establish an outpost on Mars to save humani... (more) |
— | over 6 years ago |
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A: Is using mine shafts to control a building's temperature logical? Geothermal Heat Pump - Heating & Cooling A Geothermal Heat Pump can work well on Earth for both heating and cooling. If you have a moon/planet where the temperature below ground is fairly constant (like Earth) but has dramatic swings above ground due to issues with the atmosphere, length of day or o... (more) |
— | over 6 years ago |
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A: Microgravity BBQ setup A good BBQ has a few key attributes (aside from starting with quality raw meat, which has already been arranged): High and/or long-lasting heating. High heat for searing steaks and for cooking up burgers. Lower but longer-lasting heat for roasting a whole chicken, ribs and other large (especially t... (more) |
— | over 6 years ago |
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A: Is it possible to genetically modify a plant to become sentient? The genetic changes made by the scientists to increase resistance to nuclear radiation had the side effect of turning some plant structures into an analogue to neurons. In addition, the scientists made genetic changes so that the plants would cooperate with each other using a shared root system, much... (more) |
— | almost 7 years ago |
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A: 3D Printer / Replicator : Raw Materials and Distribution Cables Without energy to matter converters or desktop controlled fusion (to create one element from another), you need to have as input every element that you want in your output. You don't need every element - just the most common. The trace elements can be added with special "element cartridges". Base... (more) |
— | over 7 years ago |