No. Average price must go down. The evening price might go up—it might go up even to the level where the average price doesn’t change at all, but it can’t go up to the level where average price would rise.
Think about it. You run a nuclear plant. Suddenly, due to solar competition, the day price went to 10%. You can’t turn nuclear off just during the day, so you keep it running and lower your day price to 10% as well. Your costs didn’t change, so to keep the same level of profitability, you need to rise the night price to 190%. This way your revenue doesn’t change.
There is no reason why you would be able to rise the price above that level.
I don't get what is the issue with rotating cylinder and stability. As I imagine the cylinder, it has radius << length, thus his axis of rotation will be the one with the smallest possible moment of innertia and thus should be stable.
Dzhanibekov effect applies only to 2nd principal axis so should be relevant only for cylinders with radius similar to length.
The thumbnail is framed as super important, a critical component that creates other criticials, and needs to be in place in advance. Feels weird that you can’t go back and modify it later if the video changes?
The idea is that you want to have a high CTR, so you need to have a good thumbnail. If you do a video that can’t be turned into a best thumbnail possible, you are screwed. The only way to fix this is to redo the video. Thus, that’s the reason you should start with thumbnail.
I guess the didn’t have their programming class yet😂
If you wrote a C program and it doesn’t do what you predicted, would you assume that your compiler is broken or that you made a mistake? If I got a dollar for every time someone wrongly complained that “there is a bug in compiler”…
World is complex. We use theory to build models describing the reality and compare their predictions with experiment. If you notice mismatch between model and experiment, it might be a problem with:
You have to further dissect and understand the root cause of the mismatch before you make any judgement.
Run away while you still can. Yeah, it’s scary. And heartbreaking. But you might not have that opportunity later on.
Take everyone with you whom you can.
You don’t have to run to some extremely different country/culture. There is lots of relatively wealthy Slavic countries in the Central Europe.
And talented programmers can always find job here.
Let me know if you need help with that.
The plug map is wrong. Gibraltar is using British plugs and should be purple.
Well, the correct question is “What is energy”. And the answer is that energy is some number that we can compute for any physical system and it doesn’t change no matter what as long as the system is reasonably isolated from its surroundings. Kinetic energy is just a portion of this quantity we can compute for something that is moving.
It’s not very intuitive honestly. The best explanation for what energy is I ever read is this one from Feynman:
It feels to me that you lack a good intuition for how kinetic energy, momentum conservation,, Newton laws, and Galileo's relativity all play together and this is causing you confusion.
Relativity says that there is no objective notion of "being still". We can't objectively distinguish between being still and moving at constant velocity (same speed, same direction).
2nd Newton law: Force is equal to mass times acceleration: .
3nd Newton law: All forces in the nature exhibit the property that if object A acts on B with a force F, then B acts on A with exactly opposite force.
1st Newton law is boring, it just says that if F = 0, then a = 0.
Force and Energy are tied together through the concept of work which says that change in objects energy = work received by that object. And formula for work is , notice the dot product here! Force perpendicular to movement doesn't make any impact on energy.
Putting all of this together, it's useful for you to do following exercises:
Once you do the three above, I have a tricky paradox problem for you to solve:
Imagine two cars driving on the road with the speed . Suddenly the first car accelerates to double the speed, thus travelling . This naturally required consumption of energy in the form of fuel. The change in kinetic energy was: and this should somehow correspond to the amount of the fuel consumed.
However, from the point of the view of the second driver, the car was starting still and accelerated to the velocity , thus the change in energy is simply .
But, this is paradox. It's not possible that the car would spend 3 times less fuel from the point of view of the other car than from the point of view of the observer standing still on the ground.
Can you explain this paradox?
That's an excellent question!
Change in energy must equal work done on the moving body .
Now, work is force over distance
But we also know that force is mass times acceleration, thus .
If you have a body moving under the influence of constant force over time , starting from the speed 0, it will have a speed at the end. It's easy to see that the average speed it travels will be though and thus the distance travelled will be .
Now, the kinetic energy equals work and thus .
No. Nuclear plant has a fixed output, zero elasticity of production. It has to sell all the electricity it produces, even if it should sell it for 0.
But, it doesn’t really matter. There certainly exists such a day price that nuclear is competitive with solar and is able to sell the same amount of produce as before.