Matt Might, a professor in Computer Science at the University of Utah, created The Illustrated Guide to a Ph.D. to explain what a Ph.D. is to new and aspiring graduate students.
I sometimes genuinely expect people to know “basic quantum mechanics” and I’ll start ranting about it as if they have some background knowledge and then my roommate looks at me like I’m crazy.
I’m so glad I don’t have to deal with people pretending to know physics that often. Usually I just get “why the fuck did you major in physics” and then I go cry
The funniest part of this comment to me is that it could be said unironically either by someone educated in college or on tiktok
I sometimes expect people to know “basic physics,” which is apparently a bit much to ask sometimes. I don’t mean having a firm grasp on what e=mc² actually means, I don’t even have that. I’m talking about a firm grasp on energy simply being the capacity to do work, and the basic fact that there is no free energy device.
No, you cannot charge an electric car while it’s driving by putting wind turbines on it. No, you cannot use gear ratios to achieve overunity. No, magnets can’t solve the problem either.
PS, if you firmly believe that crystals vibrate on higher frequencies (eta: and that vibration can somehow heal you or something), but can’t describe what frequency amethyst vibrates at in hertz, you are what Dunning and Kruger set out to study
I got curious, so I googled it. There’s a company that sells amethyst that claims it vibrates at 32,876 Hz. They do not describe anything about the physical characteristics of the particular rock they measured, which would have an impact on the frequency at which it vibrates.
Another source claims amethyst resonates with the Crown chakra, which has a frequency of 768 Hz. They do not explain how they derived this frequency. 32,876 is not a multiple of 768, and would not resonate with something that vibrates at that frequency.
Yet another source claims that amethyst vibrates at 963 Hz. It does not list any physical characteristics of the rock they measured, and this is not a multiple of either of the other numbers.
Credit to Beadworks Philadelphia for explaining that different objects have different resonant frequencies, even if they’re made of the same material! Unfortunately, that credit is revoked because they immediately claim that amethyst crystals can cure or treat medical conditions. Shame.
Yes and no. The quartz in watches needs to be tuned to a specific frequency. They do this by either adding material or taking some away, just like a normal tuning fork. Here’s a video explaining it better than I possibly can, and it’s Steve Mould, so you know it’s worth the watch
A crystal’s resonant frequency is determined by its size and shape as well as it’s material. The quartz crystals used in watches and other precision crystal oscillators are machined very exactly. Even then it’s not that they can’t vibrate at other frequencies, they’re just not good at it.
I only despise academia for their insistence to gauge value on the number of published papers. Not because I needed my thesis to be published before obtaining my PhD.
My thesis had more value than the next 7 papers I published before I left academia.
I’m in the middle of my middle ages module in uni and the professors are beginning to talk about letters from the pope and Karl the great. Should I be worried?
I don’t think this meme has anything to do with that right? It’s just a joke because we used to call all DNA that does not actively code for proteins and lies outside of genes Junk DNA.
Heh i know that those terms are a thing but the meme is saying that some person’s genome is junk/garbage/rubbish. That is just condescending with the bad taste of eugenics.
That’s correct! I recognise the lasso that as the thing used to sample polyps in the colon (and probably a bunch of other uses, totally including snagging chippie packets).
Well a colonoscope is actually an endoscope, just one meant for colonoscopies. Endoscope is just a generic term for the tool. (endo- = inside/within, -scope = tool for viewing)
Not breathing oxygen is way more toxic, though. That will kill you in a few minutes.
Sure, I imagine off-world lifeforms having entirely different metabolism. Like when we hear “this planet has a methane atmosphere” it’s like holy cow, sounds rough, but alien entities would possibly think the same thing about our planet of water and nitrogen. Imagine how horrible it would sound to someone who was water-soluble. “H2O rains down from the sky!!”
We keep finding life on earth in places where we didn’t think life was possible. And yet, when we look at the stars we have the nerve to talk about there being a “goldilocks zone” for planets in other solar systems, like that’s the only way life could exist there.
I’m sure there’s life out there somewhere, and I wouldn’t be surprised at all if carbon/water based life turns out to be a minority in the universe.
Yes, water is a simple compound made of some of the most common elements in the universe, so it’s reasonable to think other life might also evolve to use it. Carbon is also a really handy element for making complex molecules, and is also really common. But, it’s a failure of the imagination to think that life elsewhere has to follow the same basic chemistry as here on earth.
Unfortunately, most life will likely be Carbon based, in some manner (synthetic life could be different). The key is forming the large, complex molecules that make life, life. You need an element that can form chains. You also need to attach things to those chains.
The only 2 atoms that can do this are carbon and silicon. Both can form “organic” type molecules. Unfortunately, silicon has an additional reaction pathway that makes the chain easily break down in the presence of water. The conditions for silicon based life are so odd as to be unlikely to happen on the scale needed by natural processes. There might be some work arounds we don’t know about, they would be extremes.
Synthetic life is another story. Once you have active control over your environment, a number of other options open up. The first step is the kicker however, getting from abiotic natural rubble to a working replicator.
There’s a reason we are looking in Goldilocks zones, they are the most likely environment for the only process that seems viable.
Man, I love science people. Like, are you guys aware of how cool you are? I love being around people who talk about awesome shit like this, even tho I don’t understand most of it. Keep being you o7
You live on a world where the temperature is only on average 288K? It’s so cold there that H2O exists in its solid form on the surface in places!!! How can you people even move let alone have any active biological processes?
I kind of hate this image. Its like a way to discredit all the learning done in the formative elementary/high school years. If I would guess, 60-70% of everything I have learned was in high school and thats with me having several published papers.
Linus Pauling (the Linus Pauling) had a moment in his life when he became obsessed with the idea that antioxidants would make us all live forever.
It’s also worth noting that anaerobic organisms are a thing, and they die too. Yes, cells suffer with oxidation and this is indeed related to aging, but if you remove all oxygen from the equation, any replication of genetic material will still slowly age and eventually kill you.
the daily intake of natural antioxidant sources is very important in the prevention of oxidative stress, since it has many positive effects on our health.
Probably barking up the wrong tree here, but boy do I hate R. The documentation is the worst, combined with the poor r studio experience. Vscode makes notebooks a bit better but lost a lot of functionality as far as I could tell.
Laughed so hard when I this course once they told us to do ML in R with Keras … By calling the python API.
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