Sensei

One particle colliding with another particle gives up some of its kinetic energy. 1st one is decelerated, 2nd one is accelerated. Typical interactions: photon-electron, photon-proton/nucleus, electron-electron, electron-proton. YouTube animation showing the interactions of photons with matter:

What I have shown on this map are non-Latino White Americans. All of this comes from the Wikipedia Americans page: https://en.wikipedia.org/wiki/Americans#White_and_European_Americans Latino Americans (mainly Hispanic-Americans) are listed under different category. ps. Sorry I didn't include the reference in my previous post and causing confusion.

Most white Americans are not from Britain. There are only 7.1% of them:

I wish we had more physicists than politicians, soldiers, humanists, etc. etc. combined, you could understand me better.. I have feeling that you took my words up-side-down.. You should say (way too late) "I know a lot of theoretical physicists who do it for free without getting paid and still do it.".. THEN put this in your message to me for it to have any meaning in the discussion.. If someone does theoretical physics and has no results and takes money for it, it looks even worse..

The same as "time travel", "parallel universes" etc.. Ordinary people do everything for money.. No money, no work.. ps. This would be an interesting topic for a "how much Thomas Swanson" spent in physics doing something he wasn't paid for (and seeing the results obviously!)..

Not as seriously as you.. the all your threads, I can remember, are about it..

Even simple living organisms send out visual, audible or chemical signals to inform about predators, danger, food sources or other information. The more complex the organism, the larger and more complex the dictionary. Through observation - I could see a correlation between when you say a word and a thing, an action taken by you or someone else.

You seriously ask such a question about color, at a time when you should be investing in solar panels on your roof.. ? Buy rooftop solar panels in one.. ps. Make it pink.. Things made from Copper acquire H2O and CO2 from the air, and change to Cu2CO3(OH)2. https://en.wikipedia.org/wiki/Basic_copper_carbonate https://en.wikipedia.org/wiki/Patina Which is on the roof of most medieval buildings.. When their builders used a copper roof..

3D print one..

Cheap, really cheap wines, or with too high a % of ethanol can be made by mixing the juice with ethanol from distillation.. So basically a scam.. Here, if a wine costs less than the equivalent of €5, I approach it very skeptically.

https://www.nature.com/articles/s41366-020-00691-4 "Conclusions. The risk of maternal death increases with BMI; it multiplied by 1.6 in overweight women and more than tripled in pregnant women with severe obesity."

Is that the only thing that matters to you? When you can become "Planck v2.0"? You didn't give enough thought and attention to what I said in my previous posts.. Indeed, interesting. That is why I participated.. Molecules/atoms/molecules are not constant.. they are in constant motion depending on the temperature.... (or vice versa: temperature tells how much they move and/or rotate etc.).. If you make a line of atoms/particles/molecules that will form 1/3 in what time and length should maintain this state.. ? In which frame of reference should Y=1, and X=3, or whatever? In which FoR you measure inverse-square-law.. ?

So, replace 1 by any rational, and Pis will cancel, and you have a rational result.. ps. How about making it harder: working with both 2D (obeying above) and 3D (V=3/4 x PI x r^3) ? Then, there are more physical equations taking irrational as parameters, find whether they have rational answers like above..

It depends on r, of course. Interesting point. 2^(1/2) * 2^(1/2) = 2. From two irrational numbers we get, a rational number. So what rational number can be obtained from 2 x PI^2 (or whatever you meant) ? Is PI^2 a rational number? Is it possible to find such an r that d=2 x PI x r is rational.. ? Is it possible to find such an r=PI^n that d=2 x PI x PI^n is rational.. ?

Is d=2 x PI x r a rational or irrational number? The experimenter has it all turned around: PI = d/(2 x r)

A simpler to visualize example. In a computer, you have an array of bits. 0 and 1. The bit index is an integer. But there are millions/billions/trillions of them in this array. You can store PI or e, in binary in this array, but a human won't look at it deeply enough.. 6-7 decimal digits from an ordinary person is far too much.. An irrational number is irrational only in theory, when you use it in everyday mathematics, you don't use an irrational number, but something that is very close to it, with enough precision that is needed at the time of calculation.

Why do you go from theoretical physics? Go from experimental physics.. to finding or not finding quantization.. For example. 1 cm^3 of water has mass 1 gram. 1 g/cm^3 1 g/cm^3 / 18.016 g/mol = ~ 0.0555 mol/cm^3 ~ 0.0555 mol/cm^3 * 6.022141*10^23 mol^-1 = ~ 3.3427e+22 3.3427e+22 ^ (1/3) = 32.2 mln water molecules in any X,Y,Z axis in 3D world. 0.01m / 32.2 mln = 310 pm = 0.31 nm Can you move a quantum object with a precision of more than 0.31 nm and be really very sure that this is the result of your action and not some other thing acting on the particle? Can you move it? With what kind of precision? Repeat the experiment with different particles until you find a boundary that cannot pass.. It would be interesting experiment, a single, literally single atom of some heavy element which can be detected by MRI or so, put in a piece of solid ice (or whatever else transparent to MRI or so), then record its path, when it goes from the top to the bottom sinking due to its weight, due to the gravity or whatever else..

There are websites that list all surveillance cameras and/or private CCTV cameras with screwed/weak configurations that you can simply log on to and watch what their "owners".. https://www.garoweonline.com/en/news/somalia/al-shabaab-destroys-cctv-cameras-along-major-roads-in-mogadishu-with-ieds

It will work with user data like documents, photos, things which are not encrypted, etc

You can back up Windows drives on Linux. Use a live pendrive with Linux. Boot your computer from it. Open a terminal and use e.g.: dd if=/dev/sda of=/dev/sdb bs=16M This operation will make a binary mirror of your drive(s). /dev/sda is your Windows drive. If you have multiple partitions they all will be stored. You can use /dev/sda0 /dev/sda1 etc. if you have multiple partitions and want to backup just a single one at a time. /dev/sdb is your second empty drive (it will be overwritten). Let's assume that it is a 2GB external USB drive. alternatively use image file as of e.g. of=/dev/sdb0/image.img If you are not familiar with the dd command in Linux, get some spare empty 120 GB SSD drives and do some experiments first.. You can plug in your mirror instead of the original one to see if the OS still boots from it. Have you heard of RAID? It can be configured to create a mirror in real time.. ..some modern laptops do not have a CD/DVD drive.. do you have one? In modern laptop you have to use 1) pendrive (limited capacity) 2) external 2GB drive(s) plugged to USB v3.x (preferably) 3) external CD/DVD drive 4) network drive (NAS) (your own = more expensive, or less preferably cloud - but if you have metered Internet like LTE, it will be expensive too at the end)

..unless you are in Florida, US.. https://en.wikipedia.org/wiki/2000_United_States_presidential_election_in_Florida

..it is way too late.. ..if you are really advanced, you can create the entire Universe yourself..

It's all fun. ..as long as you are the Emperor..

When I RMB on your math (on desktop), I see no MathJax popup menu.. Did you use [ math ] or [ latex ] open & close tags?

..had they done so, they would have been imprisoned for 15 years in a gulag in Siberia.. In modern Russia, if someone has a blue T-shirt and yellow pants, goes to jail.. ..therefore, the key would be to reach out to them in such a way that they are well informed..