Recent content by Trikenstein

Gentlemen, I do understand (at least I hope) Newton laws and the principle of conservation of momentum. And of course, I know the solutions you recommended: like throwing a mass to the opposite direction, expelling gases. Those are somehow simple to "visualize", It is possible to calculate the...

Sir, I am trying to understand something. I ask the question the way I see it. I don't target anyone and I try to better visualize the concept with some examples to give a context. I am sorry if the way I formulate the questions could offend someone. Although I sincerely think that my questions...

Please be lenient. The silliness of the story is just to set the stage for the "swimming in space" question. ie. is there a way to self-propulse in space in case of emergency.

Some thought experiments to clarify about the self-generated momentum. Experiment1: Attach a rock with a rope. Tie the rope around your waist. Stand on the ground and throw the rock hard in front of you. What would happen to the position of body+rock relative to the ground? Experiment2: You...

Let's imagine a space tourism program where there is a fun part, the tourist can wander freely in space with a jetpack. Let's assume I stray randomly in space, floating leisurely in zero gravity. Then I detach my jetpack, just the time to make a selfie. While fiddling with the phone to setup...

Thanks for the video suggestion. Now I see the importance of the curve shape of the sail. There has to be something pushing the air backward. In my thought experiment, I simplified the problem as a person standing on the deck, pushing on the mat with a stick. Obviously the system is in...

A sail boat got stuck because there is absolutely no wind. The boat happens to have some powerful fans. Which are then bolted on deck and blow to the sails. Would that make the boat move? When the artificial wind direction is horizontal (0 degree) When the wind direction is 45 degrees. Would...

Pardon me for continuing with silly questions. If Qbit1 and Qbit2 are entangled. If the state of Qbit1 is known, can we deduct with certainty the state of Qbit2? If yes, then what is the value added of Qbit2? Analogy to illustrate the above question. I am holding a book in front of a mirror...

Thanks you Mr Hill and Gentzen. Is it correct to extract from your answers that: Thanks to entanglement, the qbits can have a significantly larger number of states Without entanglement, the observable states are just a small subset ("island in a vast quantum sea" from in gentzen's answer)

Intuitively, I find that more qbits and superposition of the quantum state could make sense as factor of the computation power of a quantum computer. In Youtube videos or blogs about quantum computers. Entanglement is mentioned as an important requirement. But without a high level explanation...

Hi, The photo shows some objects suspended on a power lines near an airfield Here is the location of those objects on a map: The 3 pink circles are the oranges balls in the photo. Which seem to be Aerial Marker Balls. QUESTION: The pink triangle is the cone shown in the photo. What is...

Why Fedora? Maybe Arch? I use EndeavourOS, KDE flavor for home computers. This depends on the maintainer of the snap app. Zoom, Golang lag behind real time. IntelliJ, VSCode, Bitwarden are updated almost real time. Golang in particular recommends to install from binaries from go.dev. With time...

In my opinion, this clearly indicates that Gnome is lacking. Honestly, have you ever wondered why you need those 16 extensions? Why is it your job to find a solution to fix what should probably be implemented by default? It's like buying a car but the steering wheel is in the middle. The user...

Not sure if this is still relevant, I have successfully upgraded from Ubuntu 20.04.4 to 22.04.1. I also have a heavy dev environment and cannot afford any down time. I made the upgrade during the weekend, to give me enough time to repair in case of troubles. Here is the high level summary...

Gentlemen, the challenge didn't end there. In our company chat channel, some respondents found Answer2 (32mm East) not intuitive. Then someone upped the ante with a variation of the challenge: CHALLENGE 2: If the well is a tunnel traversing the Earth. What is the minimum diameter to guarantee...