ratfan.on.computer - Profile | ThreadSky | a Reddit-style client for Bluesky

I'm gonna do some little deep dive threads into the Unruh effect and quantum field theory in general. I want to try convert the maths into words for max accessibility but also try avoid making it sound too vague and fanciful. Probably super easy to do. Anyway follow if this sounds cool to you! 🧪

submitted 39 days ago • 1 comment

Hopefully I don't get sued for reproducing this but it really is one of the most informative bits of text about quantum mechanics I have come across, from Carroll's 'An Introduction to General Relativity'. 🧪

submitted 39 days ago • 0 comments

"Without understanding the physics, mathematics does not answer your questions. Without understanding the mathematics, your physics theories will not work successfully either, is what we had to discover (and we keep forgetting time and again)." - ’t Hooft arxiv.org/pdf/1503.05007 🧪

submitted 39 days ago • 1 comment

@sonyacotton.bsky.social yay hello

submitted 54 days ago • 1 comment

"I think, therefore the cosmological constant must be very small." - Leonard Susskind in 'The Cosmic Landscape' summing up the Anthropic Principle 🧪

submitted 66 days ago • 0 comments

Is it socially acceptable to cold email a professor just to be like hey your work is inspiring and I wanted to be able to tell you that

submitted 79 days ago • 2 comments

This spacetime diagram morphing is a mathematical picture of viewing events in spacetime from different inertial frames of reference. Here we see how events that occur simultaneously in one inertial frame (on a line parallel to the x-axis) do not necessarily happen simultaneously in another 🧪

submitted 93 days ago • 4 comments

A nice easy one for Monday from J Hartle's Gravity 🧪

submitted 91 days ago • 3 comments

🧪

submitted 79 days ago • 0 comments

Particle physics is like, red flimflams emit floopydoops and become gigglepops, blue flimflams emit floopydoops and become red flimflams. Charlie Browns can emit other Charlie Browns and form Charlie chains. Chumbawambas are responsible for the expansion of the universe 🧪

submitted 82 days ago • 3 comments

What I do in public is nobody's business

submitted 81 days ago • 0 comments

In what sense does the Higgs field give particles mass? The standard model of particle physics is actually complete without Higgs, if all the particles moved at the speed of light. But only massless particles can move at light speed 🧪

submitted 81 days ago • 1 comment

Remember to take life 10⁻⁴⁴ seconds at a time 🧪

submitted 81 days ago • 0 comments

Particle physics is like, red flimflams emit floopydoops and become gigglepops, blue flimflams emit floopydoops and become red flimflams. Charlie Browns can emit other Charlie Browns and form Charlie chains. Chumbawambas are responsible for the expansion of the universe 🧪

submitted 82 days ago • 3 comments

Nothing better than extremely hi-fi overproduced 'lo-fi' music

submitted 87 days ago • 0 comments

Was this written by a 5 year old

submitted 87 days ago • 0 comments

What is the relationship between these two equations of gravitational potential energy we learn in school? I'd tell but I have the flu 🧪

submitted 90 days ago • 0 comments

Trying to understand new maths concepts in science usually feels like it boils down to 'which numbers do I plug in where and how do I know if the numbers that come out are bigger or smaller than they should be'

submitted 91 days ago • 0 comments

A nice easy one for Monday from J Hartle's Gravity 🧪

submitted 91 days ago • 3 comments

This spacetime diagram morphing is a mathematical picture of viewing events in spacetime from different inertial frames of reference. Here we see how events that occur simultaneously in one inertial frame (on a line parallel to the x-axis) do not necessarily happen simultaneously in another 🧪

submitted 93 days ago • 4 comments

Maybe she's born with it, maybe it's Alprazolam 🎶

submitted 93 days ago • 0 comments

Because time runs slower as gravity gets stronger, over a 100 year period a person living on the ground floor lives a few microseconds longer than someone on the top floor. 🧪⌛

submitted 94 days ago • 3 comments

Why can't I travel at just 1% lightspeed in this futuristic year of 2025? Then I could travel to the opposite side of the globe in less than 7 seconds. Seriously who wants to run the calculations? 🧪 It would make visiting my parents so much easier.

submitted 100 days ago • 4 comments

If this app wants to be legitimate it needs to find ways to reach more users in Africa, Asia, and South America to name a few regions. At the moment if feels more like a big whatsapp group for US Democrats

submitted 102 days ago • 1 comment

This common image is misleading because gravitational attraction is not caused by objects following a straight line in 3D space, but rather a straight line in 4D spacetime. The image doesn't represent time and therefore neglects time dilation's role in gravity. There's a better picture... 🧪

submitted 95 days ago • 2 comments

#grafitti #Berlin

submitted 115 days ago • 1 comment

🚨Alert🚨 I have come into possession of 𝑉𝑖𝑠𝑢𝑎𝑙 𝐷𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑡𝑖𝑎𝑙 𝐺𝑒𝑜𝑚𝑒𝑡𝑟𝑦 𝑎𝑛𝑑 𝐹𝑜𝑟𝑚𝑠: 𝐴 𝑀𝑎𝑡ℎ𝑒𝑚𝑎𝑡𝑖𝑐𝑎𝑙 𝐷𝑟𝑎𝑚𝑎 𝑖𝑛 𝐹𝑖𝑣𝑒 𝐴𝑐𝑡𝑠

submitted 98 days ago • 0 comments

The Unruh effect is a prediction in quantum field theory that an accelerating thermometer in empty space without any other contribution to its temperature, will record a non-zero temperature, just from its acceleration, due to quantum vacuum fluctuations. 🧪

submitted 98 days ago • 3 comments