#applied physics

[notjustjavierpena]

Applied Physics pt ii is so close to being done that it is unbelievable. I really did have time to sit down and write. We’re at 7.5k which might be a bit too much smut. I don’t know. I hope it lives up to expectations.

[zlo-sovs-lifeboat]

SCIENCE SIDE OF TUMBLR, I MAY BE ONTO A DISCOVERY.

So What if I were to apply Rehbinder effect when making an obsidian blade?

Obsidian can already be sharpened to 30 angstroms, but then if we apply the surface tension doing it's thing we can remove their innate coarseness, hell, this kind of deformation may actually result in a Less brittle blade.

[alvinmichaelmurphyseville]

Since Jeanette was talking about her favourite branch of biology earlier - what is your favorite branch of Physics?

“That’s another tough choice, since everything physics excites me. I’d probably say either Applied Physics or Astrophysics. Theoretical Physics is pretty neat too, so I’d say that’s a close second.”

“What can I say? I love hands on experimenting and applying what I learned and I also LOVE space! (And aliens lol)”

“But sometimes it’s nice to just kick back and think about the wonder of the universe we’re livin’ in.”

[natasa-pantovic]

AoL Mindfulness Inspirations on Pinterest

Applied Philosophy, and Psychology, meditation as an ancient European self development transformation tool...

[academiceurope]

Job - Alert 🌿

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[andranikfakirian]

Project "CompMath.AstrophysicsODEs": Software Package

Finally, I got my hands on this project again. There is definitely a strong progress in the project at the moment: there is an alpha version of the software package. It is an ODE systems configurator, (m, k) - solver and visualizer combined with user-friendly interface. Unfortunately, currently only a version of solver with a constant timestep has been made, since the theory of Novikov methods is freely available only for such an implementation of the algorithm, as far as I know.

To create a solver with automatic timestep sampling, a couple of different algorithms are usually used. Based on the discrepancy in the solutions of the equations produced by these methods, it is decided wether to change the timestep in order to reduce the error by decreasing it, or, conversely, to lessen the total number of steps by increasing it. Among the methods described in the scientific literature with decent accuracy, there is only one calculated one. Thus, to manufacture more advanced solver, it is necessary to devise another algorithm and pair it with the first one.

And that's where the good news begins: after several hours of cumbersome "semi-automatic" calculations, another theoretical technique with all the necessary quotients has already been computed. Consequently, further implementation of the method with an automatic time step will be only a matter of technique.

In the meantime, you can admire the work of the software package with a "constant solver" on a very trivial stiff problem with an exponential analytic solution.

P.S.: The graphics below show the computed solution to a simple task (u(t)) and its relative error (uEps(t)) based on the deviation from the analytical solution. I ask you to pay attention to the fact that the error is really low (maximum about 0.0000025%) for a rather stiff problem (the value reaches 2.5·10^43 in one second).

[romanticmoonchild]

Does anyone here understand physics? Specifically applied physics?

[five-thousand-loaves-of-bread]

autistic people dominate AAC conversation on tumblr so for this AAC awareness month (October), let us also remember all non-autistic AAC users & autistic AAC users who not use AAC because or solely because autism.

people use AAC for from intellectual & developmental disorders to neurocognitive disorders to neurological to physical disorders. people use AAC for disorders from birth & acquired disorders. progressive & non progressive disorders.

some AAC users have mouth speech, motor, and/or sound clarity related difficulties, others use for language and/or cogntive difficulties, some for combo of reasons.

those with…

intellectual disability

genetic & chromosomal disorders like down syndrome, rett syndrome, angelman syndrome, williams syndrome, etc.

cerebral palsy

speech language disorders like aphasia & dysarthria

schizophrenia & schizoaffective & schizo-spec

brain injury

dementia

amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), huntington’s, frederick’s ataxia, etc.

tracheotomy

locked in syndrome

n so much more not listed here

[oriixxc]

you sure wanna interrupt devil’s poker night?

[aurosoulart]

JUST FINISHED THIS !!! here is a quick look because I am excited

[andranikfakirian]

Project "CompMath.AstrophysicsODEs": Early Projects, Part 2

Let's continue the series of Early Projects. The next one was from the sphere of analytical mechanics. The task was to simulate the rotational motion of bodies using quaternions. Quaternions make it possible to describe such motions quite succinctly in formulas. Special attention should be paid to modeling the Dzhanibekov effect, aka Tennis racket theorem.

P.S.: Below is a test of the operation of this simulator with a spin of the simple screw around its axis.

P.S.2: Here is a simulation of the Dzhanibekov effect. As it can be seen when the body have three distinct principal moments of inertia, rotation around one of the principal axes (associated with the second-order inertia moment) unstable. That's why the wing screw turns over.

[greenchrysanthamath]

heavily side eyes the "Applied Physics" department

Weaponized mathematics.

[chainedspectre]

here's to all the little sacrifices we have to make as disabled people.

here's to skipping a friend's party because you were in too much pain, or because you had no energy.

here's to dropping out of clubs because they became too much for you.

here's to all the times we've said "no it's okay, you guys go ahead, i'll hang back here."

here's to all the things we've held ourselves back from just in case they hurt us.

here's to moving seats in class away from your friends because your back was getting a draft and the cold hurts you.

here's to us. here's to letting ourselves heal. here's to being cautious, being safe.

here's to the things we can do. the things we're allowed to do. here's to enjoying those things, enjoying our lives.

here's to making the most of being us.

[izzybluebell]

smorky quantz

[lesbians-for-muqing]

The fact that Xie Lian is often unable to hide his pain from Hua Cheng, like when there's a needle stuck in his foot, is to me what shows most how deep their love for each other goes.

Xie Lian feels so safe with Hua Cheng, so understood, respected and loved, that even his body fully knows it and is unable to hide anything from Hua Cheng because it doesn't feel the need to.