My actual high school experience. I enjoy math these days. When I was expected to learn and demonstrate it, I was an unstable teenager unsure if I hated myself or my parents more. (Spoiler alert: it was my parents >_>) Doing math made me slow down and make space in my head, which let out all the dead Hanks and Deans allowed the TRUAMA to flood in.
Fahrenheit makes sense for humans. Most of your day to day climates are in the 0 to 100 scale, and every 10 degrees is a noticeable level change.
100 super hot day, approaching unsafe without counter measures
90 really hot day, slightly annoying and should take precautions
80, hot day, more annoying than anything
70, beautiful day, enjoy it
60 not to bad, if it’s windy you could be slightly on the cold side
50 long sleeves or maybe a hoodie
40 definitely a jacket, and hat
30 full on coat, scarfe, and hat
20 multiple layers of out for a while, maybe double pants
10 annoyingly cold, need to start thinking about the safety precautions
0 and below, temperature now measured in hold long you can be outside before danger
Celsius makes sense for science stuff because it’s derived from science stuff, so things like calories and energy work with it. But it doesn’t really apply to everyday life as well. So it actually makes sense to use both units for the things the are good at.
Just an fyi, 100F is not “unsafe without counter measures” level of hot. That would be around 115+F. I say this as someone from a city that regularly hits 120F during the summer. 100 you can still get in your car, 115+ you need to wear gloves or else you’ll get 3rd degree burns. 100 have to buy pizza for lunch, 115+ just bake a pizza in your car.
Being from outside of the US I’m used to Celsius for everything, so I can make the same list, the numbers are just not whole 10s and I would probably round to nearest 5.
It depends on what you were raised with. For me I have all these relevant points in my head for C. 25 is nice, under 20 you slowly need to dress longer stuff. Over 30 is hot, over 40 sucks hard, over 50 can become deadly soon. Body temp is around 37.
I don’t science anymore, but living in a F country, I keep in mind for conversions:
0C is freezing point of water ~32F 20-22C is room temp ~68-72F 30C+ is Unhappy temperatures/hot.
Really only things I need to remember, and gradient based off of. It can get up to 45C where I live, but that would never be important to me. I hate the heat, if it’s 30C+, the degree to which it is hot matters little, I’m going to just want to stay out of the sun or go inside.
It’s just designed with a slightly different set of assumptions.
Instead of water freezing and boiling 100° apart, it’s 180° in fahrenheit. That makes it so that they’re on the opposite sides of a temperature gauge, and a degree of rotation of the gauge matches a degree of temperature.
Instead of zero being the freezing point of water under specific conditions, it’s a brine solution whose temperature will stabilize in a way that’s useful for using as a calibration point.
Stripped of its context, it’s odd. But it’s not irrational, just no longer consensus as the standard, and as such deprecated.
Never. They use the same spacing between degrees. The Kelvin scale was derived from the Celsius scale, just placing the 0° at absolute zero rather than at the freezing point of water.
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.
It takes the same amount of energy to increase the temperature of water by ~70°C (room temp=30°C and boiling point = 100°C) as it takes to send that cup of water 30 000 meters into the air. (If I did the math right)
Now if only we could figure out a way to actually do that without burning a bunch of fuel for the purpose of lifting fuel! Something something tyranny of rockets.
As with so many problems, this one can be solved with a suitably large cannon. Why you’d want to fire cups of water into the stratosphere is left as an exercise for the interested reader.
science_memes
Oldest
This magazine is from a federated server and may be incomplete. Browse more on the original instance.