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Everything posted by StringJunky
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Is it worth getting a spirit burner over a bunsen?
StringJunky replied to NowakScience's topic in Chemistry
http://www.coleparmer.co.uk/Product/Portable_Microburner/WZ-36310-47 -
Run this to get rid of it. It doesn't install permanently. Click Scan, then Clean and then reboot. http://www.bleepingcomputer.com/download/adwcleaner/
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Cause of Gravity? - Gravitons or Curvature of SpaceTime?
StringJunky replied to Preserve's topic in Classical Physics
I think the graviton is part of the quantum description of gravity which is what scientists want eventually so they can unify gravity with the other three forces (Weak, Strong and Electromagnetic) together mathematically but it's not playing ball so far so GR rules the big stuff and the other three describe the small stuff. For a potential quantum gravity theory (QG) to supersede the current one (General Relativity) it must describe accurately the same as GR where GR is applicable as well as it's description of the other force domains where QG is applicable. In a nutshell, Quantum Gravity is a theory-in-waiting once they've ironed the problems out. -
They are constructions using the same mechanisms that your brain uses when awake except the data used to form them is coming from memory. Pretty much what Swansont says.
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Choice is to making a selection based on a set of options. I would say, in ideal circumstances, that a person has made a choice when one of the available options can chosen without any coercion that is neither innately or externally sourced. Sexual preference is an innate bias.
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Hypothesis On Electrostatic Seed Dispersal Strategy
StringJunky replied to Acme's topic in Ecology and the Environment
Maybe the surrounding material carries the requisite 'points' ...note that the action of the charge in this plant is a repulsive effect used for dispersion rather than an attractive one as in your test plant. It's a different but relevant use of electrostatics I think. -
Imatfaal already has a thread on it: http://www.scienceforums.net/topic/82239-bulging-biceps-surfing-gravitational-waves-bicep2-results-thread/
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Hypothesis On Electrostatic Seed Dispersal Strategy
StringJunky replied to Acme's topic in Ecology and the Environment
I found out that R.Squarrosum uses electrostatics to throw seeds from itself. -
Hypothesis On Electrostatic Seed Dispersal Strategy
StringJunky replied to Acme's topic in Ecology and the Environment
I found a page or two on The Role of Electrostatic Forces In Pollination which you might glean clues from. Scroll up a bit to the title to read it all in the link.. -
Bulging Biceps surfing Gravitational Waves (BICEP2 results thread)
StringJunky replied to imatfaal's topic in Science News
I didn't realise Imatfaal had already posted about it and missed it...I was away yesterday. Sorry about that. -
Bulging Biceps surfing Gravitational Waves (BICEP2 results thread)
StringJunky replied to imatfaal's topic in Science News
The evidence for Einstein's GR just keeps piling up: A curved signature in the cosmic microwave background light provides proof of inflation and spacetime ripples Proof of gravitational waves created by cosmic inflation is shown here in this image of the cosmic microwave background radiation collected by the BICEP2 experiment at the South Pole. The proof comes in the form of a signature called B-mode polarization, a curling of the orientation, or polarization, of the light, denoted by the black lines on the image. The color indicates small temperature fluctuations in the cosmic microwave background that correspond to density fluctuations in the early universe. BICEP2 Collaboration Physicists have found a long-predicted twist in light from the big bang that represents the first image of ripples in the universe called gravitational waves, researchers announced today. The finding is direct proof of the theory of inflation, the idea that the universe expanded extremely quickly in the first fraction of a nanosecond after it was born. What’s more, the signal is coming through much more strongly than expected, ruling out a large class of inflation models and potentially pointing the way toward new theories of physics, experts say. http://www.scientificamerican.com/article/gravity-waves-cmb-b-mode-polarization/ -
Mobile phone chargers to be standardised under EU law
StringJunky replied to CaptainPanic's topic in Politics
If all devices could eventually be charged by induction there won't be any need for physical interface standards. -
If you made it seem like a direct quote but the content or spirit was distorted beyond the author's intent that would be misleading and can't be good form. Also, I think you need to preface or follow your version of what someone said in such a way that the reader is clearly informed that it is paraphrased. On topic: There seems to be two ways to get the cursor out of the quote box after editing depending on what mood the software is in. Normally I can just click it outside the box and there the cursor will be but sometimes it it gets stuck. If you take it to the end of the quote after editing it then double-tap the enter button it should be outside the box.
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Amid U.S.-Russian tensions over Ukraine, space show goes on
StringJunky replied to Unity+'s topic in Science News
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Has the appearance of Europeans lightened up in 5000 years?
StringJunky replied to Moontanman's topic in Science News
You may well be right but my question was from a learning perspective not argumentative. Would being dark-skinned in a UV-poor environment be a significant enough disadvantage to cause a change in a population with that property in five millennia?. -
Has the appearance of Europeans lightened up in 5000 years?
StringJunky replied to Moontanman's topic in Science News
Isn't it? In evolutionary terms? -
I'm sure we've discussed this before but that relates to the observable universe and you could have an infinite number of adjacent observable universes, so, it's not illogical for there to be an infinite universe as well without invoking an infinite rate of expansion for it to be that way. Does that make sense?
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Has the appearance of Europeans lightened up in 5000 years?
StringJunky replied to Moontanman's topic in Science News
Could covering up their bodies due to cooler cloudier climates have facilitated the selection of lighter skin in such a short time? -
Crimea troubles - start of something larger?
StringJunky replied to CaptainPanic's topic in Politics
In the beginning, i think, democracy has to be fought for in the literal physical sense if that is the overwhelming popular feeling in Ukraine ...forcing square pegs (pro-Russians) through round holes just like the pro-Russian faction are trying to do now to pro-democrats. The pro-Russian government, by locking the door behind them and securing their position, are seriously cheating and I sympathise/empathise that Ukrainian pro-democrats feel they must use any means, including violence, to avoid more decades of communist-type autocratic oppression. -
What's your download speed? Use this: http://www.speedtest.net/ Externet. Zorin is great but it's too heavy on resources ...it's about equivalent to W7...needs at least a gig ram.
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I might guess the waves formed inside are destructively interfering with each other i.e. canclling each other out much more than the waves formed on the outside. Here's a link to more detail about constructive and destructive interference: http://www.phys.uconn.edu/~gibson/Notes/Section5_2/Sec5_2.htm
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Should meat and cheese be labeled as cigarettes are labeled?
StringJunky replied to EdEarl's topic in Science News
Oh Ok. Sorry. -
Should meat and cheese be labeled as cigarettes are labeled?
StringJunky replied to EdEarl's topic in Science News
My point was not to the study itself but cognitive bias in general. -
Should meat and cheese be labeled as cigarettes are labeled?
StringJunky replied to EdEarl's topic in Science News
Isn't it interesting that we can find positive benefits for what are generally considered harmful - if only we look - as you have done here? Seeing what we want to see and ignoring the rest is so easy to fall victim to isn't it?