>>7807870 TVs emit a lot of harmful radiation, smaller eyes let them watch anime all day without getting eye cancer. This is especially helpful with shows that are extremely carcinogenic, such as haremshit or shonenshit.
It is true that appeal to authority effects the direction of science all the time. Just like how the christian church was the authority that led people to believe the earth was flat, and how the modern scientific reverants like michio kaku and degrasse is bullshitting people about quantum magic.
I would like to hear your educated opinion on the following points.
1) What was there before the big bang. 2) Why did the big bang happen. 3) How do black holes not violate the 2nd law of thermodynamics? 4) What happens when the universe comes to an end. 5) Is it possible that parts of the universe that have yet to be observed violate the 2nd law of thermodynamics, and what would that look like?
1) Nothing, time began and so did the universe at that moment. 2) However if you believe in the multi-verse, string theorists hypothesize that the big bang was the collision of two universes. There are many more hypothesis some stronger than others. 3)Hawking Radiation 4)Depending on the cosmological constant, the universe with either keep on expanding (gravity between all the objects in the universe does not overwhelmingly attract), become stagnant and static (gravity eventually equals out) or there will be a big crunch or reverse big bang (gravity overwhelms all... Comment too long. Click here to view the full text.
I've never bothered practicing those integration techniques beyond basic familiarity. Sure, I know about trig substitutions and partial integration and partial fractions and shit, but whenever a complicated integral comes up I just put it into Mathematica. What's the point in spending pages doing tiring computations (while risking to make some sign error somewhere or whatnot)?
Blue Origin makes historic second landing using the same rocket. The New Shepard rocket was the same one used in Blue Origin's first powered landing flight in November, the single stage rocket lifted from its West Texas launch site, flew straight up to an altitude of 333,582 ft (101.7 km), which is past the Karman line that designates the official beginning of space, then descended for an autonomous powered landing. https://www.youtube.com/watch?feature=player_embedded&v=74tyedGkoUc
The common notion that an IQ exist is completely backwards. To understand where I'm coming from you need to understand that the IQ test was invented in the early 20th century to attempt to "classify intelligence". It was a man-made idea put into existence.
As I see it, intelligence can not be measured. Some humans simply do not try when it comes to knowledge. Anyone can be amazingly intelligence if they put their time to it. And IQ test only test patterns and the ability to do IQ tests.
Feel free to engage with me on this subject. >inb4... Comment too long. Click here to view the full text.
>>7807748 >speed is a man made concept >speed cannot be measured objectively >some people are simply not trying in a competition >you cannot determine who runs faster >this fatass here could be faster than Usain Bolt, if he tried
True, I never imagined it would be, being a free online course, but it's a great introduction to the fundamentals. Also, having the material laid out week-by-week with structured and logical progression really helps.
>>7807731 Listen you brainlet, if you travel upward at a speed of 1mph for a billion years you're going to escape earth's gravity. Now extend that analogy to spacecraft, and think about what escape velocity actually means versus what happens with spacecraft.
>>7807690 I'm not. I also got the best grade in Physics 3 years ago but I dont remember anything. I think I should start with "why you feel acceleration in a car?", and I think that's because of your momentum which is variated by the variation of speed of the car
How much power does a led emitting 6000 mcd of 465 nm blu light in a 20 degrees angle converts into luminous energy (Watts)? All the light the led emits is captured, so I don't care how wide the beam is, just how many watts I can gather. I tried searching for led efficiency but all I find is lumen/watt. The problem is that it is calculated for 550 nm light, and I don't know how to calculate that for blue light. Any ideas?
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