Activity for James McLellanâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #287455 | Initial revision | — | almost 2 years ago |
| Answer | — |
A: How would an interstellar spaceship's speedometer work if everything else is moving? I'd recommend a Kalman filter to increase measurement accuracy to the overlap of multiple system errors so that you get the best result. For inputs, may I recommend - - a calculation of doppler shift for known stars. You can do this realtime. Take a fast fourier transform of the incoming light ... (more) |
— | almost 2 years ago |
| Edit | Post #287368 |
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— | about 2 years ago |
| Edit | Post #287368 |
Post edited: added nonrealism |
— | about 2 years ago |
| Comment | Post #287395 |
I had thought about that. You might be able to hold the competition inside a room only a little bit larger than the occupants, and they leverage off an opposing wall to perform a pin. (more) |
— | about 2 years ago |
| Edit | Post #287394 | Initial revision | — | about 2 years ago |
| Answer | — |
A: A hair product which is both a lipid ointment and a gel Yes. Although this may be streching your definition of oil a bit. The oil product could host some sort of microfauna that cure the product by building EPS microstructures. https://en.m.wikipedia.org/wiki/Extracellularpolymericsubstance (more) |
— | about 2 years ago |
| Edit | Post #287393 | Initial revision | — | about 2 years ago |
| Question | — |
How Would the Sport of Wrestling Change in a Microgravity Environment? How would competitive wrestling change in a microgravity environment? (more) |
— | about 2 years ago |
| Edit | Post #287368 |
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— | about 2 years ago |
| Edit | Post #287368 |
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— | about 2 years ago |
| Edit | Post #287368 |
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— | about 2 years ago |
| Edit | Post #287368 | Initial revision | — | about 2 years ago |
| Question | — |
Meaning of Non-Locality? Theory ### If I am understanding this history of this correctly, in the 1920s the mathematical process of converting measurements with a certain amount of measurement error into numbers, then doing your calculation, wasn't doing a very good job of predicting the experimental outcomes of nuclear ch... (more) |
— | about 2 years ago |
| Comment | Post #287351 |
If you spin it, what services does it provide? Can you still get things to and from the surface cheaply? (more) |
— | about 2 years ago |
| Comment | Post #286604 |
@#8046 I have another question : I may have misunderstood your response that there are no accepted answers by design to mean we want to foster discussions, not be narrowly "one question, one answer". With that in mind, I started a discussion https://scientific-speculation.codidact.com/posts/287351 th... (more) |
— | about 2 years ago |
| Edit | Post #287351 |
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— | about 2 years ago |
| Edit | Post #287351 | Initial revision | — | about 2 years ago |
| Question | — |
Discussion of Aerogel Orbital Rings Orbital rings are a proposed megastructure intended to dramatically reduce the cost to enter or exit a planetary gravity well. The ring is a solid structure, belting around the planet like a hula hoop. Because it is solid, any loss of gravitational potential energy (falling) on one side would be ... (more) |
— | about 2 years ago |
| Edit | Post #287348 |
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— | about 2 years ago |
| Edit | Post #287348 | Initial revision | — | about 2 years ago |
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What Would a Femtometer Scale Utility Fog Be Useful For? Utility fog is a swarm robotics concept in which a mesh of robots barely larger than a grain of pollen (5 micrometer ( $10^{-6} $ m ) bodies and 50 micrometer arms) are dodecahedrons (12 sided polygons) ending in telescoping arms (12 of them) ending in grabbers. The concept is that the tiny robo... (more) |
— | about 2 years ago |
| Edit | Post #287320 | Initial revision | — | about 2 years ago |
| Answer | — |
A: PVA glue curing process Looks like it may just be mechanical. According to this article, if true, you can rehydrate white glue with water and heat. https://simpleglue.com/how-to-revive-elmers-glue/ (more) |
— | about 2 years ago |
| Edit | Post #286826 |
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— | over 2 years ago |
| Edit | Post #286826 |
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— | over 2 years ago |
| Edit | Post #286826 |
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— | over 2 years ago |
| Edit | Post #286826 |
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— | over 2 years ago |
| Edit | Post #286826 | Initial revision | — | over 2 years ago |
| Question | — |
Price's Law Sanity Check Price's Law is a hypothesis that in an organization, or across an industry, roughly half the productive output is being generated by a number of people equal to the square root of those participating in the activity. For a classic example: in a business of 100 people, half of the output can be traced... (more) |
— | over 2 years ago |
| Comment | Post #286604 |
In WB.SE, where editing a question, there is a "Helpful Links" window on the right. It contains a "Visit the Help Center" link. It's possible I'm not seeing a similar link when replying at Codidact. I see : "Featured", "Hot Posts", "Subscribe to Questions", "Codidact"... ah! I found it. It's in the m... (more) |
— | over 2 years ago |
| Comment | Post #286604 |
I'm trying to reproduce it, but can't. It's possible I somehow did it by mistake. (more) |
— | over 2 years ago |
| Edit | Post #286604 |
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— | over 2 years ago |
| Edit | Post #286604 |
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— | over 2 years ago |
| Edit | Post #286606 |
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— | over 2 years ago |
| Edit | Post #286606 | Initial revision | — | over 2 years ago |
| Question | — |
What are the Ground Effects of the South Atlantic Anomaly? Picture of Earth's Magnetic Field, with South Atlantic Anomaly over Continental South America Hilighted I was recently introduced to the South Atlantic Anomaly. As I understand, for satellites and space craft, this is a natural feature that can wreck space craft by taking even computers designed f... (more) |
— | over 2 years ago |
| Edit | Post #286604 |
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— | over 2 years ago |
| Edit | Post #286604 | Initial revision | — | over 2 years ago |
| Answer | — |
A: How can we grow this community? Under "Making a Good First Impression", a few mechanical notes from someone just making the transition from WB.SE to Codidact - Question titles should probably be at the top of the page, instead of the bottom Login from another community (for example writing.codidact.com) does not work - I mu... (more) |
— | over 2 years ago |
| Edit | Post #286598 | Initial revision | — | over 2 years ago |
| Answer | — |
A: How can we grow this community? Advertise on Gab Gab.com is an environment where very little advertising is happening (so what you spend will be visible), and the audience is almost completely people actively looking for alternatives to the products they are currently using. They claim 15 million unique visitors per month ... (more) |
— | over 2 years ago |
| Edit | Post #286597 | Initial revision | — | over 2 years ago |
| Answer | — |
A: High-Energy Exhaust Shielding for Far-Future Drive You have mass flow rate and velocity, but the area this is spread over will say a lot - $$\dot{m} v = F = 1 {{kg} \over {s}} \cdot 1,000 {{km} \over {s}} \cdot 1,000 {{m}\over{km}}= 1 \times 10^{6} N $$ If your engine design spreads this over a 2 meter (6.6 ft) diameter (1 m radius), you'd have... (more) |
— | over 2 years ago |
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