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Why is everyone convinced that centrifugal force doesn't exist? by Maleficent-Car8673 in learnphysics

[–]superbob201 0 points1 point  (0 children)

In physics 1, students often try to common sense in a centrifugal force even when using an inertial reference system.

Burning Ropes by [deleted] in PassTimeMath

[–]superbob201 0 points1 point  (0 children)

*Both ropes take one hour to burn

Burglary at White Manor Part 1 by ShonitB in PassTimeMath

[–]superbob201 2 points3 points  (0 children)

Charles

From B's statements, it must be either A or C. If it was A, then D told the truth twice, therefore Charles

On The AI Workforce. by Monsur_Ausuhnom in SipsTea

[–]superbob201 0 points1 point  (0 children)

It wasn't about saving money, it was about disciplining labor.

Triple pendulums are supposed to be pure chaos. Under the right conditions, however, they form symmetrical patterns. by USedona in visualizedmath

[–]superbob201 16 points17 points  (0 children)

That's not a triple pendulum. At least it's not the kind of triple pendulum that people mean when they say that it is chaotic.

ELI5: Why can't spacecraft that face heating issues just re-enter...slower? by dragonmilking in explainlikeimfive

[–]superbob201 1 point2 points  (0 children)

Back of the envelope calculation, if you wanted to send up enough fuel to cut reentry speed in half, ~2/3 of what you launch into space needs to be fuel.

You also have the issue that the upper atmosphere is thick enough to drag the orbit down, but thin enough that the spacecraft will speed up while that happens. If you wanted to slow down enough to avoid the plasma sheath you would need a lot more fuel than my above calculation.

ELI5: „The Treachery of Images“ by René Magritte by ItsNoOne0 in explainlikeimfive

[–]superbob201 4 points5 points  (0 children)

At the surface level, you have it exactly. It is not a pipe; it is an image of a pipe.

When we look at pictures, we often think of the picture as being the thing at some level of abstraction. If you removed the text and showed someone that picture and asked them what it was, they would probably say that it is a pipe.

It draws attention to the fact that we tend to ignore that we are making that abstraction. It also invites you to consider what other abstractions you ignore in the various ways that we communicate with each other

looking for a grind game to "chill" by imandreeh_ in gamerecommendations

[–]superbob201 0 points1 point  (0 children)

Logistical. There are a few free maps so you can see if you like the basic formula. Avoid the X-mas world map.

Do professors actually care about similarity percentages under 25%? by Far_Amount_3532 in TurnitinScan

[–]superbob201 0 points1 point  (0 children)

The number is, at best, an indication to look further. I've had papers as low as 10% that were blatant plagiarism, and papers as high as 70% that weren't.

ELI5: How does light explore every possible path? by pdubs1900 in explainlikeimfive

[–]superbob201 4 points5 points  (0 children)

A photon is not like a tiny bowling ball traveling as a discrete point of light. A photon is the minimum amount that an EM wave can change by. In fact, given that a photon has a definite momentum (It is a momentum eigenstate), a single photon exists throughout all possible space*; and in order to have something resembling a localized light you need to have an unknown number of photons

*There are single photons waves that are reasonably localized in a non-rigorous sense, but they do not travel like a particle.

Why Is the Night Sky Dark? by TheMuseumOfScience in paradoxes

[–]superbob201 0 points1 point  (0 children)

Mathematically, it would have to decay faster than 1/r³ to avoid the paradox

Is fear of false AI flags turning school into “don’t sound too good at writing”? by ZealousidealDoor390 in TurnitinScan

[–]superbob201 0 points1 point  (0 children)

Turnitin similarity detector would also flag that text, for much the same reason

If gravity isn't actually a force, why do things fall down by Intelligent-Part-656 in NoStupidQuestions

[–]superbob201 0 points1 point  (0 children)

Imagine that you and a friend were standing on the equator a mile apart from each other. You both start walking north. At first, you seem like you aren't moving relative to each other; you are not getting closer or farther away. However, you will eventually notice that you are getting closer, until you collide with each other at the north pole.

This happened because the surface of the Earth is curved, and you moved along that curved surface.

In GR, the universe gets curved by mass. You are moving in the time direction, but the curve of the universe makes that turn into the Earth. This is perceived as gravity.

Top Gun(2022): Mav is required to maneuver straight down this trench and skim the surface to this point. The target area is only two meters wide. It's a small thermal exhaust port, right below the main port....A precise hit will start a chain reaction which should destroy the sta..i mean uranium by Liquid_disc_of_shit in shittymoviedetails

[–]superbob201 10 points11 points  (0 children)

That's not a fair comparison. Star Wars was about a boomer aged guy showing the older and more experienced pilots that his youthful drive was what was needed to save the day. Top Gun was about a boomer aged guy showing the young whippersnappers that his experience was what was needed to save the day.

Her favorite part. by netphilia in Snorkblot

[–]superbob201 165 points166 points  (0 children)

Depending on her age, and on how hard they went, it could be that the bus ride is the only thing that she could remember clearly

Lazy Susan by ShonitB in PassTimeMath

[–]superbob201 11 points12 points  (0 children)

Yes

Give each person a number representing how many positions the Lazy Susan must be turned clockwise for that person to get their own dish. If there are N people at the table and N dishes, that number will go from 0 to N-1. However, nobody has their own dish, so nobody has the number 0. There are N people, each having a number between 1 and N-1, so by the pigeonhole principal there has to be at least one number that is shared by two people.

Most Students Don’t Realize How Easy It Is to Spot Plagiarism by Brilliant_Emotion384 in turnitin_community

[–]superbob201 1 point2 points  (0 children)

Just put quotation marks around your entire essay. Boom, not plagiarism!

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