Successful_Try543
@Successful_Try543@feddit.org
- Comment on If I invented a shirt that caused cameras to be damaged when filmed/photographed, would I be committing a crime by wearing the shirt at events with cameras? 1 day ago:
If you could damage a camera by pointing it at something, the manufacturer would fix the issue before selling it, because no one is buying a camera that does.
Recently, there were news about the LIDAR of Volvo cars destroying camera sensors when they were aimed into the direction of the IR laser beam.
- Comment on This startup wants to use the Earth as a massive battery 5 days ago:
This thing seems to require the perfect conditions as well, which may prove even harder to find compared to places for pumped hydro.
I agree. It’s also a question of how many cycles the impermeability of the rock lasts.
- Comment on This startup wants to use the Earth as a massive battery 5 days ago:
If I get it right, the ground itself is the impermeable “bladder”, as the water is pressed into rock. The rock keeps the pressure onto the water until it is being released.
- Comment on Why is the spellchecker in Firefox so abysmal? 6 days ago:
The tool is literally named anf languagetool.org has the option to self host.
- Comment on Should I unplug my smart tv from the internet? 1 week ago:
- Comment on Should I unplug my smart tv from the internet? 1 week ago:
You could also do that “softly” with PiHole, if you intend to use some of the apps, but if you don’t, it’s only beneficial to disconnect it entirely from the internet.
- Comment on Why are there no universities/colleges that start in the afternoons? 1 week ago:
However, there are universities (of applied sciences) offering programs for employed people, where the courses subsequently are in the evening.
- Comment on [deleted] 2 weeks ago:
That’s for the ideal case. In a real engine, there is some loss directly at the engine of the compressor.
- Comment on [deleted] 2 weeks ago:
Like the other commentators have already stated, the conditions (temperature difference)in winter and summer are different. However, if the temperature differences are the same, only reversed, heating requires less energy than cooling, as the (electric) power is also transformed to heat which in winter, when in heating mode is also usable heat while in summer, it adds to the heat that needs to be discharged outdoors.
- Comment on Why abc, xyz, etc.? 3 weeks ago:
p and q often also represent arbitrary rational numbers (Q), like m and n often denote natural numbers (N).
- Comment on Why abc, xyz, etc.? 3 weeks ago:
Actually, the use of i,j,k as counters is older than programming. It’s more like the other way round. They implemented making variables starting with i, j, k implicitly integer by default, as i, j, k were commonly used for indexing.
- Comment on Why can't a liquid move faster than the speed of sound in that medium? 3 weeks ago:
but it bounces off particles which makes it take a longer path
If I get the explanation on Wikipedia right, it’s not the photon taking a longer path, but the photon is absorbed by electons and re-emitted after a short delay. This effect is what decreases the speed of light in a transparent medium.
In exotic materials like Bose–Einstein condensates near absolute zero, the effective speed of light may be only a few metres per second. However, this represents absorption and re-radiation delay between atoms, as do all slower-than-c speeds in material substances. As an extreme example of light “slowing” in matter, two independent teams of physicists claimed to bring light to a “complete standstill” by passing it through a Bose–Einstein condensate of the element rubidium. The popular description of light being “stopped” in these experiments refers only to light being stored in the excited states of atoms, then re-emitted at an arbitrarily later time, as stimulated by a second laser pulse. During the time it had “stopped”, it had ceased to be light. This type of behaviour is generally microscopically true of all transparent media which “slow” the speed of light.
- Comment on Why can't a liquid move faster than the speed of sound in that medium? 3 weeks ago:
Nothing is truly incompressible.
Exactly. One usually speaks of quasi-incompressibility when the resistance against compression (bulk modulus) is much greater than the resistance against shear (shear modulus), which is oft the case for liquids such as water.
However, water has a lower resistance against compression (2 GPa) than e.g. steel (160 GPa), which is considered a compressive material. - Comment on Why can't a liquid move faster than the speed of sound in that medium? 3 weeks ago:
“Liquid/fluid” and “gas” don’t necessarily mean the same thing scientifically as they do colloquially, they’re actually very close to the same thing.
Both, liquids and gases, are fluids. The main difference is that liquid phases have a free surface, e.g. the level of water in a glas, whereas gases don’t. Their surface is equal to the surface of their compartment.
- Comment on YouTube app is the worst 3 weeks ago:
Ah OK. Thank you.
- Comment on YouTube app is the worst 3 weeks ago:
According to the description on F-Droid, PipePipe has SponsorBlock.
- Comment on YouTube app is the worst 3 weeks ago:
So in other words: You need to have the YouTube app installed for the ReVanced patcher application to work.
- Comment on YouTube app is the worst 3 weeks ago:
At least it’s not seen as a smart move to pay for services twice, particularly not if one payment is your private data and especially not if that data is going to a big corporation like Google.
- Comment on YouTube app is the worst 3 weeks ago:
PipePipe has a Login option that NewPipe explicitly doesn’t want to implement, and thus, allows to watch restricted content.
- Comment on YouTube app is the worst 3 weeks ago:
They are neither included in standard F-Droid repos, nor Izzy, nor do they offer an F-Droid repo themself.
- Comment on Stellantis abandons hydrogen fuel cell development 4 weeks ago:
This referrs to this statement in the text, mentioning both ICE and fuel cells:
That sometimes refers to hydrogen combustion engines, but more often, it’s hydrogen fuel cell electric vehicles, or FCEVs. Both promise motoring with only water emitted from the vehicles’ exhausts.
While this statement “no exhausts except water” holds for fuel cells, it doesn’t for ICEs.
- Comment on Stellantis abandons hydrogen fuel cell development 4 weeks ago:
Yet, for these facilities to be economically feasible, they need to run 24/7, not just when there is an excess of electricity available.
- Comment on Stellantis abandons hydrogen fuel cell development 4 weeks ago:
Ideally there are no harmful combustion byproducts when used in ICE, the reality is probably less harmful combustion byproducts, not none
E.g. nitruogen oxides
- Comment on Can you have an infinitely long wavelength of light? Or is there some maximum? 4 weeks ago:
Otherwise, the answer would be trivial, about 800 nm.
- Comment on If you had a huge slingshot, how much rubber band would you need to send a spaceship into space? 4 weeks ago:
Actually, the (vertical) velocity of the deflected center point of the rubber band is faster than the axial contraction of the rubber band itself (at that point) which is limited by the speed of sound of the material.
Derivation: Pythagoras, chain rule
- Comment on Why does everyone hate Income tax ? 1 month ago:
Being paid as some kind of tax isn’t income tax only, it’s also e.g. VAT.
- Comment on Are display sizes always measured in inches? 1 month ago:
Additionally, at least in German, the term inch is usually translated into the local counterpart Zoll.
- Comment on What are the differences between 1) probabillities, 2) possibillities, and 3) plausabillities? 1 month ago:
Thank you.
- Comment on What are the differences between 1) probabillities, 2) possibillities, and 3) plausabillities? 1 month ago:
If you throw a coin, the result has two possibilities: It may show either the obverse side (head) or the reverse (tails). These possibilities have equal probability (“50:50”).
- Comment on This meme goes way back 2 months ago:
Big Tiddy Gorgon Girlfriend :-p
