Recent content by Nantes

Here is the video: What is the physical explanation to why I see the light make patterns strikingly similar to magnetic lines on that spinning electric fan, depending on how I move the point of view? (the phenomenon happens equally to the naked eye and to the camera).

I have an uncanny hunch that you will thoroughly enjoy this fantastic interactive story. I can't recommend it enough.

Haha, of course you do, but it's still amusing to see how the basic physics explanations line up with and are used to explain what is going on romantically in the movie. For example, there is a segment that connects the character's gradually failing relationship and how they gradually fall out...

Background: There is a very interesting Catalunyan film on Netflix called "Las Leyes de la Termodinámica" (The Laws of Thermodynamics) which is perhaps the world's first hybrid of a physics documentary and a romance film. The main character is a physics professor who falls in love and attempts...

Oh, so there was the missing piece of the puzzle. I was ignoring that the air that was sucked in would have to come out somewhere! So the astronaut would be propelled to the opposite of the direction the outgoing air goes. Thank you, kind sirs.

Interesting, thanks! I'm baffled that, seemingly, no one tried to replicate Feynman's experiment in more precise and less explosive conditions since then. My problem is slightly different though, as I'm ignoring torque by pointing the sucking nozzle exactly directly in front of the astronaut's...

Sorry for the vague title, I really wish the title character limit was longer. Suppose you are floating in space without gravity, but instead of a vacuum, there is air all around you. You turn on a powerful vacuum cleaner with the nozzle pointed directly ahead of you. Ignore torque/rotational...

That would reveal nothing new. I already verified by two different qualitative experiments that the 6-blade has more wind output. Plus it would be affected by differences in mass between both skateboards.

Is that supposed to be a joke or are you really proposing a new experiment? :P

Why would they not? If both motors are rated at 80W, then both should draw the same power, no? Otherwise there is no point in these ratings if apples are not equal to apples.

I happen to have both models of fans depicted in the first post. I checked the manufacturer's website and found out both models draw the same amount of power, so they probably have the same engine; the only difference between them seems to be the number of blades. So I just did a little test: I...

I'm Brazilian, and until a few years ago most commercial electric fans sold in the country looked like this: But then one company started making them with 6 blades, claiming it had better wind output and made less noise than the 3-bladed fans (they didn't directly made this claim; it was...

Why is our Sun involved with a planet in a star 4 light years away? Was that just your way of saying the planet has to have an orbit parallel (or closely parallel) with our own around the Sun, so that it's possible to observe the reduction in brightness when it passes in front of the star?

I wanted to know why this planet had not been found before. Kepler and other telescopes have found planets on stars much further away, and giving Proxima's status as the nearest star, I imagine it was the first one they pointed the telescopes towards. What stopped this planet from having been...

While it makes sense, at the same time it doesn't, because there are other ways to acquire electricity, such as hydro dams and solar panels. You couldn't feasibly use the kinetic energy of water to heat something up without converting it to electricity first. In this case where is the trade-off...