Yes. There are a lot of issues with a human going to and staying alive on Mars - even for short periods of time. When it comes to science, it seems like our progress on robotics doing the work (so we don't need men on Mars) is moving faster than our solutions for humans going there. And, the cost of a manned mission is many times the cost of an unmanned mission. I'm all in favor of exploring. I'm not so excited about having some human try to do it in person.
now i get it! I think physics is kind of neat now.. thanks. So no matter how much how much i try, when I hit that equilibrium resistance, i will by no means go any faster.. But if I was able to, that resistance would get more also. So the resistance is based on my own speed and it is not stationary. So supposedly the terminal velocity/gravity speed is at 180 mph but that would be because of the natural resistance at that speed. Not 160, not 173, but at around 180... interesting.. Now this is a standstill velocity in that section/of terminal gravity, etc... But if a person were to shoot a gun in that section/of terminal gravity, at speeds of 1,700 mph, then as it met with the outside resistance of anti/to 180 mph, the bullet would be slowed down to 180 mph. So the outside maximum allowance the air gives is 180 mph, basically. Up to 180 mph and down to 180 mph.
Glad to be of assistance. In essence you are correct about the bullet since it will lose momentum owing to friction and ultimately be no different to a bullet fired vertically out of a barrel at ground level. Once it is in "free fall" it will reach it's own terminal velocity which I believe has been estimated at a slightly higher figure of 205 mph but still in the same ballpark. The difference can probably be attributed to the density and air resistance between a body and a lead bullet. https://forensicoutreach.com/library/the-falling-bullet-myths-legends-and-terminal-velocity/
It's not just an hypothesis. It's the theory of relativity. Through a hundred years of serious testing, there has been no refutation. Scientific method has no mechanism for proving ANYTHING to be true, so claiming the t of r hasn't been proven true makes no sense.
Rockets provide thrust be accelerating mass in the opposite direction. It doesn't depend on having an atmosphere. Plus, space has no friction. Gravity is all you have to worry about for most of the trip.
I know. hy·poth·e·sis hīˈpäTHəsəs/ noun a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. "professional astronomers attacked him for popularizing an unconfirmed hypothesis" synonyms: theory, theorem, thesis, conjecture, supposition, postulation, postulate, proposition, premise, assumption; More PHILOSOPHY a proposition made as a basis for reasoning, without any assumption of its truth.
Let's look at some data from actual measurements. In the Large Electron–Positron Collider (LEP), electrons and positrons were accelerated to very high speeds. To keep those particles on their circular track, their speed has to be measured. The total energy of those particles is measured as well. Here is a plot of the speed divided by the speed of light versus the total energy of the particle in the energy range that was studied at the LEP. For more than 99.98% of the energies studied at the LEP, the speed of the electron is somewhere in between 99% and 99.99999999995% the speed of light. To see a little bit more detail, here is the same plot, but with a logarithmic scale in the x axis. Electrons and positrons inside that particle accelerator never exceeded the speed of light, despite being accelerated to energies 200000 times the energy corresponding to their rest mass. At this point, there is no indication that matter as we know it (electrons, protons, neutrons, and all the others), does not behave in accordance with the theory of relativity above a certain critical amount of energy. I like using the simplest explanation for natural phenomena that is accurate enough to describe all observations, until contradictory data shows up. The theory of relativity still holds by that standard.
It turns out one of our astronauts smuggled a feather aboard a trip to the moon. One reason the Moon is interesting is that it has (essentially) zero atmosphere. So, check out this youtube of him dropping a hammer and a feather in the vacuum of the moon:
You do realize that was a fake feather don't you? It actually weighed as much as the hammer, that's the only way they could pull that trick off on a sound stage in LA.
I see you are one of those government brainwashed types. Hey Will....psssst, you know we went to the moon don't you? Hahahahaha
I really do hope you are joking about both your level of scientific ignorance and your intention of becoming a science educator in the near future. I've done a version of the feather/hammer experiment using evacuated tubes and it works just fine.....
As a science teacher my beliefs are not allowed into the classroom. I will teach what is required even if they are lies. My views are for you on this forum only.
Being that I am the Archangel Michael, I can assure that Santa does not exist. Now I see why you love trump. You are a shining example of what has become of of the Republican Party.
Any teacher that does not fully understand their subject lacks the ability to install a passion for science in their students and does them a disservice. The best teachers are always passionate themselves about their subject. That applies to math and history and literature and music and any subject you care to name. They also enjoy their jobs more because nothing is more rewarding than seeing the light of understanding in the eyes of a student when they grasp the topic for the first time.
My passion is in giving kids knowledge, answering their questions, instilling critical thinking within them. I will be successful if they leave my classroom not only smarter, but maybe, hopefully, a little more prepared for the real world by teaching them the tools to seek out the truth, to question, to understand and to apply that to their everyday lives. That is my passion. This isn't college, this is elementary school where its more important to relate to the children rather than the subject matter. I don't really care if they know how many senators we have in congress, I want them to understand why we have a congress. I don't care if they know the names of the top 5 most communicable diseases, I want them to understand that its bad. So yes, I will teach them according to the standards laid down by the state but they will hopefully leave with a little more than just random facts. That is the job I choose to do.
With respect to Spooky, I've found it difficult to develop a clear understanding of the whole story - then again I've only been posting for a week so I might have got hold of the wrong end of the stick. Earlier in this (or another) thread Spooky said that (s)he was studying to teach science. Elsewhere in this (or another) thread Spooky said that (s)he was teaching elementary school. A detailed understanding of abstract concepts like Special Relativity would be entirely unnecessary in the latter case. Then again just because someone says something on the internet, doesn't make it so. Spooky could be a professor of theoretical physics at a prestigious university and is just enjoying yanking our chains - I've known it happen on other boards, heck I've done it myself from time to time.
