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freeztar last won the day on October 9 2018

freeztar had the most liked content!


About freeztar

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  • Birthday 03/12/1978

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    Atlanta, GA
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    Ecology, Computers, Music


  • Biography
    I work and study. Fun exists as well. ;)
  • Location
    ATL, GA, USA
  • Interests
    Music, Ecology, and Science in general
  • Occupation
    Computer Guru ;)
  1. Um, no. Marijuana is a psychedelic actually. It has a stimulant effect on the circulatory system. Ironically, some people swear by its ability to treat their anxiety while others go into uncontrollable anxiety upon ingestion. I agree that marijuana does not treat seizures or their catalysts, but it can be mighty effective at reducing the number and severity of occurrences. For some people, especially in extreme cases, this can be an absolute godsend.
  2. I came up with an idea for a short story, but I don't know if someone has already written something similar. I'm hoping the more read around here can advise. I only have the very basic idea for plot so far. Companies are mining aluminum from landfills and it has become a global business worth billions. At one of the landfills, a mutated bacteria is exposed and it causes a massive outbreak. The story would conclude with scientists finding another microbe in the same landfill that has adapted genes necessary for resisting the bacteria. Some themes I would like to explore: human waste, the
  3. I was thinking about this the other day. In this age of alternative facts, it forces people to speak in absolutes. My thoughts on this matter started after I read a lively debate on Pluto being a planet, or not. Mountains are the same. It just depends on perception at this point, but we could easily set standards. As Turtle described, there are a lot of factors to consider. So rather than an easy answer, you would have to consult a taxonomic field guide to know for sure that what you are looking at is a defacto mountain (and not just a silly looking hill). I propose a few standards: 1. H
  4. Cool thought experiment. I thought by the title that you were going into photon torpedo territory, but really you are just working on the first hypothetical part which is "How does one store light?". Some answers from my point of view: 1. I don't understand the assumption. Do you mean that the inside of the box would get brighter because it is absorbing more photons? If so, I think that is valid. 2. The radiation pressure is not really significant with photons. Well, at least naturally occuring ones at distance. I don't think radiation pressure would be a factor in a photon torpedo. 3. The 9
  5. The constant speed of light is not artificial. It can be measured. In fact it was measured to a high degree of accuracy before SR. http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html
  6. I'll go ahead and guess 15 for #1. The first axis is passed at 7 pennies, as is the next. Since the spiral veers away, it looks like it will take twice as many. Since there are only six pennies since the last axis was traversed, I am going with a gut feeling of twice as many (+1). I would imagine this pattern would repeat along this path (basically a squared equation). But I could totally be wrong. lol
  7. It says the video is not available, even when I manually paste the end of the URL you provided. :(
  8. There are all kinds of rabbit holes to venture through here. My favorite is a link from the wiki sticky beads that Craig posted, Abraham-Lorentz force. https://en.wikipedia.org/wiki/Abraham%E2%80%93Lorentz_force "It was thought that the solution of the Abraham–Lorentz force problem predicts that signals from the future affect the present, thus challenging intuition of cause and effect." That is something I will have to try and wrap my brain around. It is only tangentially related to the topic of this thread, but interesting nonetheless. As far as gravity waves are concerned, we are stil
  9. Can you point me to Tesla's ideas on this? I will delve into the links you have provided. Thank you! I took pre-calc twice: once in high school AP and once in college. Should I skip ahead? I remember functions (y=f(x) and all that) but maybe it couldn't hurt to refresh. And...I just answered my own question. ;) Thanks again for the link!
  10. I had a dream about a month ago. I can't recall the exact details of the dream, but I was left with a pressing urgency. From what I can recall, I was speaking to Einstein. It became clear to both of us that something was missing. I also was left with the feeling that I was on the verge of discovering levitation. It was a crazy dream. It has left me with an unending quest to get to the bottom of it. Obviously, this is a Herculean task and I unfortunately don't possess the mathematical prowess or understanding of QED to get even close. Hence, I am posting here in hopes that I can either mak
  11. Great article from a theoretical physicist that started a consulting job for amateur physicists. https://aeon.co/ideas/what-i-learned-as-a-hired-consultant-for-autodidact-physicists
  12. Interesting reply, Craig. I seem to recall the Starwisp idea (perhaps from these forums many years ago as I have not read Forward's book - will have to check that out). 250 gs to Jupiter in about 8 hours seems crazy to me. How powerful are these microwaves?
  13. In this article, they talk about a tiny wafer-like sail that could be powered by an orbital laser. Unfortunately, they don't give any specifics or details. How would this work exactly? It also made me start thinking about the lasers. If you shoot a laser in space, does it travel backwards from the force? Photons don't have mass, but they have energy. Wouldn't Newton's third law apply here? Wouldn't this mean that an orbiting laser would have its orbit slowly decay without some compensation from thrusters or something? There are tons of other questions too...What about space debris? How do
  14. I agree with letting it go if there is no significant harm from the irrationality, but there is still a financial burden and they have talked my wife into getting the pearl powder so it's eating into our money (not anything major, but still). I'm actually not even sure if CaCO3 has any affect of skin. Perhaps it does, but my main point to these people was that you can purchase CaCO3 a lot cheaper than imported pearl powder from China. Chalk is also CaCO3 and it defintely feels soft when rubbed on the skin, but this is obviously more of a result of the powder being very fine (small grain size
  15. A few colleagues of mine have been purchasing Chinese "pearl powder". When I remarked that it is basically calcium carbonate, I got widespread disvowment. How can I convince these people that ground up pearl is the same as CaCO3?
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