# CramBoom

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1. ## Simple Explanation for Quantum Entanglement?

Thanks, I know all the stuff about wave function, wave collapse, non-local interaction, and the basics. I just wanted to know the formulae involved and the more complex reasoning for why it is happening (theoretical reasoning).
2. ## Simple Explanation for Quantum Entanglement?

Can anyone explain simply what quantum entanglement is and how it works (with equations). I understand the basic principles, but I found the in depth information a little bit confusing. Thank you.
3. ## Quantum entanglement

What is non-locality then? I know it has to do with quantum entanglement, but that is all I know about it.
4. ## At this day and age, what graphics card?

Thanks everyone! He built his own PC, so space shouldn't be a problem.
5. ## At this day and age, what graphics card?

I was wondering, at this day and age, what graphics card do you recommend for a dual monitor set up? This is not for me, but for a friend. He wants to run 2 1080p monitors, and he games a lot. He plays games like Call of Duty, Minecraft, and Battlefield 3 (and other games, not sure which ones though). He wants to future proof his machine, for the upcoming COD Ghosts and other graphically intense games. List of things he was wondering: -How many GB of DDR5 ram? -Any specific models? -What to look for in graphics cards? Thanks.
6. ## Infinite Gravity?

But infinity is such a powerful concept. Even though gravity is inversely proportional to the distance squared, an infinite amount of massive bodies kind of counters that in a way. Or am I terribly mistaken?
7. ## Infinite Gravity?

I am by no means an expert on this, so I'm probably completely off. But, if our universe was infinite, wouldn't there be infinite gravity all around us? I know gravity is weaker the farther away you are from the source, but an infinite universe should have an infinite amount of massive bodies, therefore there would be an infinite amount of gravity everyone. Since gravity is uniform everywhere, it will cancel itself out, and voila, no gravity. Doesn't this factor rule out the possibility of an infinite universe? I am sure scientists already thought of this, so why am I wrong? Thanks.
8. ## Bullet Block Experiment

Ok guys, I uploaded the video. My aim was to explain it without any equations or high level math. Do you think its accurate?
9. ## Bullet Block Experiment

That's true, but I want to try to approach this problem without using equations. What if I added this sentence to the end of the explanation? You have to remember that the difference in penetration is quite tiny, and that the amount of energy required to rotate the block of that size is also very small, which is why a small factors can affect the outcome so much.
10. ## Bullet Block Experiment

Alright, I want to make a video response, and I'll be sure to credit you guys. But is this a simple yet effective explanation (so most people understand)?: So, basically, both blocks went the same height because more energy was lost in the first impact. No matter how where you hit the block, there will be an equal amount of upward force. When the bullet hit in the middle, most of the kinetic energy is lost due to sound, heat and friction. This is because the center of mass was where the bullet was shot, so the block had to stay straight when the bullet made contact. This meant the bullet could lodge itself deep inside the block without the block moving out of its way. This compression and splitting of the block used a lot of the bullet’s kinetic energy. But, when the bullet hit the side of the block, the block rotated slightly, since the center of mass was not where the bullet was shot. This meant the bullet could only lodge itself so deep before the block rotated too much for the bullet. Therefore the kinetic energy that was previously used to lodge itself deep inside the block was now used to rotate the block. This allows both blocks to reach the same height, with the same amount of energy.
11. ## Bullet Block Experiment

I don't have any degrees in science, I'm barely in highschool, so bear with me if I didn't understand you correctly. Basically, the momentum from the impact is conserved, so no matter what, the same amount of upward force is applied to the block, no matter how far from the center of the block the bullet hits. This is because you lose less energy because there is less heat, due to penetrating the block less when impacted on the side (assumed because the block is easier to move when it can rotate about an axis, so it turns before more heat can be produced by friction). The second equation explains the amount of rotational energy (angular momentum). Did I get that right, or am I compeletly off? Thanks for your help.
12. ## Bullet Block Experiment

I am not sure, sorry. All I know is the information from this video, and the previous one. Here is the previous one: I believe he said the bullet lodges itself inside the block with both shots.
13. ## Bullet Block Experiment

In this veritasium's newest video, you can see that he shot 2 blocks with a bullet. One in the center, other on the side. Therefore, one block was spinning when it went up, whilst the other wasn't. But, both blocks clearly reach the same height. Also, they had the same amount of energy applied to them (one gun shot), but one appeared to have more energy, since it reached the same height but was spinning. Can anyone explain this?
14. ## Where does energy for gravity come from?

How do gravitons fit into this?
15. ## Which is the most 'intelligent' animal, in your opinion?

For me, it is a tie between elephants and octopi. Octupi are smart in thier own way, and have advanced brains, whereas elephants have self consciousness, can recognize themselves in a mirror, problem solve, etc.
16. ## Evolution does not explain the human brain or does it.

About people who have amazing abilities, like human calculators and such. This might have been answered already, sorry if it has Anyway, it's because of strengthened neural pathways. The more something is done, the more you use that specific neural pathway, and the more it is strengthened. Hence the saying, practice makes perfect. They might have done it a few times, and after success or just enjoyment they practised. Some people's neural pathways strengthen more quickly and easily, and this leads to an amazing ability. Everyone has this trait, but everyone is unique in what they excel at. Please correct me if I'm wrong XD.

A tail would definitely help with a lot of things. Fur would reduce the need for clothing, and we could be a combination of warm blooded and cold blooded, producing our own heat, but are comfortable in warm temperatures too. A lot of things can be improved.

Ok, thanks!
19. ## 5th graders interested in science

You could check out my youtube channel as well, I post weekly science videos. I make my videos so almost anyone can understand them, and sometimes I throw in some equations and terminology for advanced viewers. http://youtube.com/cramboom Sorry if that was straight up advertising, but I think they will understand and like the kind of science videos I make.
20. ## Stopping Light

As you may know, scientists stopped light for a full minute. They electromagnetically induced transparency on a crystal, shot a second laser, then turned off the first one, making the crystal opaque. Since it is opaque the light stopped bouncing around. But how does this work? If light actually stopped, it would defy quantum theory because we would know the position of a particle and its velocity. Also, I thought massless particles couldn't stop, period. Can anyone give me some insight on this? Thanks.
21. ## Life elsewhere, thoughts.

Tardigrades are amazing. They were actually sent in space an brought back after being exposed to radiation, the vacuum of space, etc, and they alive and happy when they were brought back to earth. They even brought some baby tardigrades with them. Also, about the topic, the universe is too big not to have other life. The human race may never meet other life because of the sheer size of the universe, but it is possible that we will. But is life possible in higher dimensions? I mean our definition of life: The condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional...(from google) Is it possible that life could follow that definition and live in a higher dimension? Or does that definition only apply to the 3rd dimension?
22. ## i want to be a programmer,,,,,,,,,,, but how,,,,,,,,,, i have no knowledge,,,,,,,,

Get notepad++, it supports many languages and is easy to use. Also, try to learn a high level language first, and try to learn one that has a c syntax. Low level languages like c++ or java are harder to learn, but they are more efficient and faster. A high level language is usually easier to learn, but are slightly less efficient (though python is a high level language, but still very efficient). Eventually you will have to learn a low level language if you want a serious job, but a high level language like python can help you start out. You also have to look at if you are more interested in web programming or desktop. For web programming, definitely learn HTML first, then CSS. Then you can move onto a language like PHP or javascript. For desktop programming, you start out with something like python, then move onto c++ or java. http://www.codecademy.com/ is a good place to learn programming, https://www.khanacademy.org/ teaches a variation of javascript and I think he has a python section. I am by no means a professional or even a very good programmer. Take my advice with a grain of salt. I just know a little bit of javascript and ruby, and this is just advice that others gave to me. Good Luck! The key is to stay motivated!
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