Sensei

How about radioactivity? [math]m(t)=\frac{m_0}{2^\frac{t}{t_{1/2}}}[/math] m0 - initial mass of radioactive isotope f.e.[math]^{14}_6C[/math] https://en.wikipedia.org/wiki/Carbon-14 t1/2 - half-life for [math]^{14}_6C[/math] is 5730 years. so after 5730 years we find that [math]m =\frac{1}{2}m_0[/math] There is no motion involved in this calc. We find animal body, carbon ore, ancient artifact, we know how much of Carbon-14 it should have, and measure what is actually mass of this isotope, and finding out how much of time was needed to decay isotope to have such effect. Reverse of above equation. Instead of measuring mass m at time t, measure time t from known m0 and m and t1/2.. Radioactive dating article: https://en.wikipedia.org/wiki/Radiometric_dating

One can move in +1m in X axis in f.e. 1 second, or 2 seconds, or 1 hour, or +1m Y axis in 1 second, or 2 seconds, or +1m Z axis in 1 second, or 2 seconds, (or any other distance d, less than c, in time less than t=d/c) Then how can you say "and thus no fourth dimension is needed to explain it.".. ?

How is called process in which vodka is produced?

Very cool design. +1 It's seamless approach to solution how to mount and power it.

HTTP server does not know what is in layer above it. Doesn't have any idea about HTML. One can have list of image files, or any other files for example, that have nothing to do with HTML. It's as easy to make HTTP server replying HTML as any other file type. According to https://en.wikipedia.org/wiki/CERN_httpd CERN HTTPD was written on NextSTEP, later ported to Unix. They're using HTTP ports/protocols to be as invisible/hard to detect transmissions as possible. BTW, scienceforums.net is on nginx..

It's not about power.. "An ionization smoke detector uses a radioisotope such as americium-241 to produce ionization in air; a difference due to smoke is detected and an alarm is generated. Ionization detectors are more sensitive to the flaming stage of fires than optical detectors, while optical detectors are more sensitive to fires in the early smouldering stage.[12] https://en.wikipedia.org/wiki/Smoke_detector That's interesting, looking at how they're designed, smoke detector could be source of spark to ignite flammable gas...

Sounds like you would need oscillator https://en.wikipedia.org/wiki/Electronic_oscillator or multivibrator https://en.wikipedia.org/wiki/Multivibrator Start from making multivibrator on breadboard like in figure 1 in above link. Connect 2 LEDs to see how they turn on/off light. Get familiar with how capacitance and resistance changes delays of blinking light. Then move further from this setup.

Force is change of momentum in period of time. Regardless of what cause it. Electrons attract protons in matter. And repel other electrons. Like in oil drop experiment. We make oil drop positively charged by ionization caused by x-rays. Which is starting attracting to negatively charged electrode above it. And result is cancellation of gravity force in precisely measured moment. Force from electrostatic interaction, canceled force from gravitation. F=0 N overall. And oil drop is levitating inside of device. Or even flying up after increasing quantity of x-rays/voltage on plate. This is pretty much classic physics interpretation. But let's see it from quantum physics point-of-view. Why you don't fall in chair, and into ground, to core of Earth.. ? Because electrons in chair, or ground, are repelling electrons that are in your foot. If they would be no longer existing, like when greater than Sun star collapse, and formation of neutron star, no electrons would repel your foot anymore, and you would be sucked in also. michel123456, was talking about nature of change of momentum. What is primary source. If I have photon emitted in direction of electron, like in Compton scattering experiment, and part of energy of photon is absorbed, and electron is accelerated, and new photon with less energy is made.. Particle is accelerated. Easy to calculate and measure in the real life with high voltage generator such as Van der Graaf generator. But what is gravitational equivalent of such experiment.. Obviously "produced" particle would have to have be neutral (because electron remain negatively charged regardless of height above Earth surface, and proton remain positively charged also etc.)

You're also source of gravity. If below ground there is large amount of metal, say iron ore, it's influencing by tiny tiny amount gravitational acceleration g in that area. It can and is measured by f.e. oil&gas industry and used as information about "something is there" for further investigation. Map of how gravitational acceleration is varying is here https://en.wikipedia.org/wiki/Gravity_of_Earth

Stars attract other stars in their neighborhood. The most visible example is binary star system. They're rotating around their common center of mass.

Star needs to have galaxy escape velocity or more to escape galaxy. https://en.wikipedia.org/wiki/Escape_velocity https://www.newscientist.com/article/dn24249-stars-escape-velocity-shows-how-to-exit-the-milky-way/

That's irrelevant to discussion (whether HTTP is compressed or not), and even not correct. Apache owns 39.25% according to surveys. http://news.netcraft.com/archives/2015/05/19/may-2015-web-server-survey.html

1) look at water (reflecting some things) through polarization filter, and start rotating it. You will notice how reflection is disappearing.. And you will be able to see what is below water surface more easily. 2) point laser at polarization filter, in darkness, or even better under water (blue laser the most visible). You will see two beams of laser coming from polarization filter. One is reflected, second one passed through filter. It can be repeated multiple times with multiple filters in row. If polarization filters are always rotated the same angle (pointing up f.e.), reflected beams will be each step less and less powerful, while beam that passed through will be visibly more powerful than reflected.

Enthalpy... Have you ever programmed HTTP server or application connecting to it through net? HTTP response *is* compressed the most of time. Web browser sends request with compression methods it supports, and web server such as Apache is returning HTTP response which is compressed by method supported by web client. https://en.wikipedia.org/wiki/HTTP_compression

Example of such number.. ? This is completely different problem. Computer can work only with what it has in memory or external data storage. Typically we work with 32 bit floating points, and 64 bit floating points numbers. Because they're implemented in hardware in FPU in CPU (which means fast working). But any programmer can make their own xxx-bits floating point numbers implementation in software. We can use entire computer memory, say 16 GB, for keeping just a single number. It will have 137,438,953,472 bits of precision. It would be possible to keep number up to [math]2^{137,438,953,472}[/math]

Commander, do you have Android smartphone or tablet? Better make Android .apk (application) to download IMHO. Preferably using NFC. Is your's listed here? http://www.nfcworld.com/nfc-phones-list/ This part needs to be rethought. f.e. If 1st player will take 7 from bottom row, 2nd player will take 5 from bottom row, 1st player will take 3 from bottom row, 2nd player will have 1 remaining and will lose.

But you didn't use all 300 mL at once of course.. ? It's approximately 100x more in moles than 4 g of AgNO3..

Correction: you can't do it for bound-to-atom electrons. But you can do it for free electrons, traveling through vacuum, or through cloud chamber or other particle detector and leaving trace (and slowing down while traveling through medium). The more kinetic energy had particle, the longer trace. Long thin traces are from electrons. Short thick traces are from alpha particles (Helium-4 nucleus) But can you describe where is each atom in every molecule.. ? Either no. For polar molecule it's to some level of precision possible, because they have one region of molecule more positive and opposite more negative. So after flying though external electric field they rotate accordingly to electric field (other electrons or protons gathered on metal electrodes). But for perfect non-polar, it's pointless, as protons and electrons in molecule cancels each other nicely.

My Core i7 was running for 15 hours by now. Can touch cpu cooler (radiator) by hand and keep it as long as I want to. It's warm.

Mordred, you think your links are absolute truth, undeniable dogmas. There is needed more humble opinion. Don't reject experimental evidence prior you know it first.. (whatever it is).. f.e. Dark flow https://en.wikipedia.org/wiki/Dark_flow ps. You don't know, what you don't know..

It's way more complex than you may think. Say we have gamma photon with energy exceeding 1.022 MeV energy (f>=2fC), once it will collide with stationary atom (stationary in it's own FoR), there is created electron-positron pair. [math]\gamma \rightarrow e^+ + e^-[/math] But we have something like redshift and blueshift Relativistic Doppler effect. [math]f=f_0\sqrt{\frac{1+\frac{v}{c}}{1-\frac{v}{c}}}[/math], blueshift [math]f=f_0\sqrt{\frac{1-\frac{v}{c}}{1+\frac{v}{c}}}[/math], redshift So, if our atom prior collision with photon, is accelerated to significant speed of light, photon that had not enough energy, in "normal" circumstances, will be blueshifted, and in accelerated FoR will have enough energy for pair-production.. ps. It's all about definition of "what is mass", "what is energy", "what is length" and "what is time" (regardless of what swansont is saying it's not definable in numerous of threads). Unlike him, I think they're essential questions in quantum physics.

In every country list of books is different. Local language book writers in different countries will be on the list. Ancient Greek's books are common for European countries (for at least 2000 years), as common basement of culture, architecture, mathematics, philosophy etc.

Unity, watch this video to see how it should be calculated: IMHO for this kind of stuff, pretty good results are obtained with high speed camera. The more FPS the better. Put vertical scale behind failing object. Then you can see every frame by frame in 2D animation editing software. And from scale read distance it traveled. Frames are with pretty much constant delays each other, so current_frame_count [unitless] * 1.0 / frames_per_second = time

If you will invent time-machine that works.. You need to install plugin http://www.openexr.com/photoshop_plugin.html Search for "Photoshop exr file format" or so in Google. For me RAW can be useful. Because it's extremely easy to make loader in C/C++. BMP is nearly-RAW. It has just bitmap header structure at beginning of file, that we need to skip. The rest is up-side-down RAW. Make a test: write same picture in JPG (test various compression levels), and in PNG, load them in Photoshop. Put to layers. Use subtraction mode between layers. It will show difference introduced by lossy file format.

I always use PNG, when not using PSD (PhotoShop Document). Pretty good is also EXR file format (it can have even 32 bit floating point number per channel, while PNG/JPG have 8 bits unsigned integer per channel). Obviously at cost of file size. Especially photos taken by digital camera, at full res, saved automatically to JPEG, if we will load it in Photoshop or other 2D image processing software, and then do some processing like rescale down, and we will save it yet again in JPEG, it will introduce even more errors due to double saving in lossy compression file format. Make a test: ten times load same photo, and save in JPG, load it again, save in JPG, repeat..