Rhett Allain
@rhettallain.bsky.social
970 followers 130 following 570 posts
#physics stuff. WIRED blogger. #MythBusters #science and #MacGyver technical advisor. https://www.wired.com/author/rhett-allain https://rhettallain.com
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rhettallain.bsky.social
I think I will take that as a compliment
rhettallain.bsky.social
New #physics #electrodynamics video - using #python to display the electric field due to dipole water molecule.

youtu.be/BmvTOyyZQpo
Electrodynamics: Calculating the Electric Dipole Moment For Water
YouTube video by Dot Physics
youtu.be
Reposted by Rhett Allain
palomarskies.bsky.social
Another look at Comet C/2025 A6 (Lemmon) from this morning. Here's three 8-minutes exposures showing its motion against the background of the stars. 🔭
rhettallain.bsky.social
This #physics #electrodynamics video is for future-Rhett because he's going to forget how to make a quiver plot and contour plot due to an electric dipole. #python #iteachphysics

youtu.be/cP3l6-2Z9rs
Electrodynamics: Plotting the Potential and Electric Field for a Dipole with Python
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
New #physics #electrodynamics video - finding the electric potential and electric field due to a dipole. #iteachphysics

youtu.be/rF3R6-849Rs
Electrodynamics: Finding the Electric Potential and Field due to a Dipole
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
#infrared cameras are fun, but also super useful. You can easily find water leaks even if a wall doesn’t look wet. Here’s a fun #physics demo
rhettallain.bsky.social
I came up with a new line that I like.

We don’t do science to get stuff, we get stuff because we do science
Reposted by Rhett Allain
rhettallain.bsky.social
New #physics #electrodynamics #python video - AGAIN doing the finite difference calculation of electric potential, but this time with Jupyter notebooks. Bonus: calculating the electric field. #iteachphysics

youtu.be/l9_Bacoo6Mc
Electrodynamics: Solving Laplace Equation for Potential Using Python
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
New #physics #electrodynamics video - solving 2d electric potential with python and a finite difference relaxation method. #iteachphysics

youtu.be/BB5QZ2El1AI
Electrodynamics: Finding Potentials with Boundary Conditions Using the Finite Difference Method
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
New #physics video (this one is long). Using separation of variables to find the electric potential in a 2D area with boundary conditions ( #electrodynamics). Yes, 3D surface plot included at the end.
youtu.be/M3RDynwsFuw
Electrodynamics: Using Separation of Variables to Find the Electric Potential
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
This is what is looks like
rhettallain.bsky.social
New #physics #python #electrodynamics video - showing that we can repeat the method of images for a charge near a plate with a many body problem.

youtu.be/tUPKyG0QJ3w
Electrodynamics: Charge Near a Conducting Plate, Modeling with Python
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
Don’t forget @phyphox.org - there are some great experiments where you can get data using a smartphone
rhettallain.bsky.social
New #physics video - analysis of a collision between a #UAP and a missile to estimate the UAP mass. #python code included (for visualization). #iteachphysics

youtu.be/wFscSDiLjJk
Do UAPs Conserve Momentum? A Physics Video Analysis of a Collision with a Missile
YouTube video by Dot Physics
youtu.be
rhettallain.bsky.social
On the NASA Mars biosignature page - I love this paragraph that subtlety asks for future funding with a totally unnecessary gives a shout out to Trump.
rhettallain.bsky.social
For my #electrodynamics class, I made a tutorial to help students build a #python program to solve the 1D potential boundary problem using the finite difference method. Here it is in case you find it useful. #physics #iteachphysics

docs.google.com/document/d/1...
Laplace Equation
Laplace Equation Recall that the combination of Gauss’s Law and the definition of electric potential gives the following. The last equation gives a relationship between the potential and the cha...
docs.google.com
rhettallain.bsky.social
I'm pretty sure you can turn on a color-temp bar. Need to double check. But yeah, these cameras are so much more affordable than they were 10-15 years ago
rhettallain.bsky.social
Morning coffee in #infrared