I’m on the otters side here, semiconductors make no sense. For example the Fermi-Energy is supposed to be in the middle of the band gap but how that’s just idiotic. Fermi-Energy is the point up to that we fill electrons but inside the bandgap are no states. Like defining the properties of an electron that doesn’t exist.
- 0 Posts
- 21 Comments
FreeBeard@slrpnk.netto World News@lemmy.ml•BRICS expands to 56% of world population, 44% of global GDP: Vietnam joins as partner country114·10 days agoI never understood BRICS. Sure, they are the second line of industrial powers (China?) but especially India Russia and China hate each other to the bone. They are partners only on paper. If someone can explain it to me please go on .
FreeBeard@slrpnk.netto memes@lemmy.world•Downvoting posts that commit logical fallacies.4·2 months agoFirst Incompleteness Theorem: “Any consistent formal system F within which a certain amount of elementary arithmetic can be carried out is incomplete; i.e. there are statements of the language of F which can neither be proved nor disproved in F.” (Raatikainen 2020)
Am Ende hatte die DDR also doch Bananen 🍌
FreeBeard@slrpnk.netto Comic Strips@lemmy.world•[AmandaPanda] How to Use a French Press15·2 months agoAgain we are talking about the coffee maker as if it’s the most important part in the quality of your coffee. It’s also how you spot someone pretending to know coffee. Far more important are the beans. After the beans comes your grinder and water quality.
A connaisseur can enjoy every style of coffee making but never bad beans. Industrial type of coffee is mostly on the bad side btw…
FreeBeard@slrpnk.netto Deutschland@feddit.org•Export von deutschem Bier: Katerstimmung bei deutschen Brauereien4·3 months agoWoher der Hass? Gilt das für alle untergärigen Biere oder geht es um spezielle Marken?
Ich finde ja die Schönheit der Bierkultur liegt in der Vielfalt <3
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English1·3 months agoThese are 50 cm wide half spheres. If you find that comparable to the situation in the picture your appetite must be enormous.
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English16·3 months agoI sadly don’t understand these units and your point is drained in it. The point I want to make is that the “force” of vacuum is limited by the difference of pressures.
You say it changes “drasticly” with area or suction but that is untrue. It changes linearly with area (not drastically) and pressure difference has a maximum. The maximum is defined by the pressure of the vacuum(=0) and the pressure of the ambient air (1 arm). Both are constant so the maximum is constant and actually not that big.
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English23·3 months agoThe difference between ambient pressure and inner pressure is always smaller than ambient pressure. Delta p is therefore limited. The force comes from Delta p times contact area which is constant.
I sadly don’t know your units of mass but as I said a perfect vacuum over an area such as the Bowl is as strong as a muscle. The Ravioli will in no world produce a strong vacuum so muscle will win in most cases.
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English71·3 months agoIt’s delta p and not fraction p. The difference between ambient pressure and inner pressure (at least zero) is always smaller than ambient pressure. Delta p is therefore limited.
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English63·3 months agoThe pressure acts over the area of contact. For a perfect vacuum it would lead to ~1kN of force. This is the same order of magnitude our muscles produce. If you take into account that the vacuum results from cooling over such a small temperature interval the force can’t be too high.
FreeBeard@slrpnk.netto Mildly Infuriating@lemmy.world•My ravioli bowl won't unstick. Took about an hour of prying, and still I couldn't unstick the plate.English3611·3 months agoThe power of suction is physically limited. That means it either isn’t suction or op is crazy weak. My guess is that the plastic melted (probably not from boiling Temp) or op is strongly exaggerating.
FreeBeard@slrpnk.netto [Migrated, see pinned post] Casual Conversation @lemm.ee•What's something you love the smell of?English1·3 months agoChemically it’s the smell of beet red. Most people describe it vastly differently because the retro nasal smell makes it feel like something else. Pretty interesting if you ask me.
I should be able to see the sun during the whole night. If it radiates in a cone the sun will rise in the middle of the sky. This model is - even for flat earthers - unimaginative.
I’m a physicist. If you are an engineer that sounds like a “you” problem.
FreeBeard@slrpnk.netto Linux Gaming@lemmy.world•Stellaris 4.0 'Phoenix' game-changing update due May 5 with the BioGenesis ExpansionEnglish01·4 months agoIt looks like a strategy game but actually isn’t. The strategy part just isn’t developed enough. It’s a story and RPG style game with a strong focus on economy management. The game discourages strategy by telling you how strong an army is (as a number) and giving you no tactical option. Meaning higher numbers will always win.
The (new) DLCs are mostly very bad and short so the game as a whole is in a strange state where you can play a good game with missing features without DLC or you play a bad game with lots of features that is very expensive with all the DLC.
I kinda hope that the game dies soon because the frequent game breaking updates and optional (and disadvantages) DLC makes modding annoying even though there are extremely fun mods, even better than the DLC.
I always wondered what would happen if you cite an original source of something we consider common sense now. What would nature say if you use conservation of momentum and cite Isaac Newton and the Principia Mathematica.
What if you quote something in latin. For most of science history this was completely normal.
FreeBeard@slrpnk.netto DACH - Deutschsprachige Community für Deutschland, Österreich, Schweiz@feddit.org•USA bitten Deutschland um Eier – hohe Preise wegen VogelgrippeDeutsch9·4 months agoDie Leuchtfeuer von Minas Tirith. Die Leuchtfeuer brennen. Gondor bittet um Hilfe.
I would be grateful if you could include the country this applies to in the title.
For everybody else: it’s the US. Who would have thought.