Comments by "kazedcat" (@kazedcat) on "Joe Scott" channel.

@kolgax2064 If Ancient Civilization reaches our modern technology we would see Ancient Geostationary Satellite. There is no Ancient satellites in the sky so ancient civilization are not sophisticated enough to launch rockets and put geostationary satellites for global communication.
3
@kolgax2064 I don't believe in alien magical technology. Modern understanding of physics is already very close to the truth outside very extreme conditions. While I wish FTL is possible the chance that it can become reality is very low that it is comparable to believing in magic.
3
Rockets carry their own oxygen without problem. Rocketlab use battery to power the pumps for their rocket so power is also not a problem. The issue with planes is the atmospheric drag that slows it down and reduces range. If you can design a plane that flew very high to reduce drag as much as possible you can increase the range of a battery powered plane.
2
@wictimovgovonca320 This is why they need multiple mirrors instead of just one. The mirrors shape the light into a specific dipole pattern that enhances exposure contrast.
1
@HotelPapa100 When we are discussing about the limits of a technology then the best way to know about limits is to look at extreme cases. Rockets are extreme case where they have to carry their own oxygen to power their flight. The fact that they can reach orbit carrying oxygen tells you that carrying oxygen is not a physical limitation for range. The fact that there is a rocket that can reach orbit using batteries to power their turbo pump also tells you that power is not the limitation either. Finally what separates rockets from planes is that the rockets get out of the atmosphere as quickly as possible. This tells you that the reason for range limitation is atmospheric drag. It also makes sense without drag the plane should keep going without need for additional energy followings Newton's law of motion.
1
Math is not just about numbers. The fundamentals of math are about sets and elements and how they relate with each other. In terms of that then it is the universal language. But it will be a family of languages with different dialects that are different but have similarities. So you can invent new math but pi and e will still be usefull numbers. Units, primes and compounds will still exist on your new math. And a set with 2 elements combine with a set with 3 elements will still give you a bigger set with 5 elements.
1
@marykaygiven Post the coordinates of this ancient satellite so that I can verify if it exist.
1
Engines run on liquid propellant. Motors run on solid propellant. So the side boosters of the space shuttles are motors while the booster of apollo moon rocket have engines.
1