Nirmalya Kajuri
@kajunut.bsky.social
Assistant Professor of Physics at IIT Mandi and Science Writer. String Theory.
Pinned
The Spacetime Beat | Nirmalya Kajuri | Substack
All the cool fundamental physics you have been missing out on. Click to read The Spacetime Beat, by Nirmalya Kajuri, a Substack publication with hundreds of subscribers.
nirmalyakajuri.substack.com
How often do you find yourself wishing for a newsletter that covered fundamental physics in way that was accessible but not dumbed down? Pretty often, I am sure!
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
I tried looking back at the good old days, but all I saw was lockdowns and sourdough breads.
I guess hindsight really is 2020.
I guess hindsight really is 2020.
November 11, 2025 at 3:16 PM
I tried looking back at the good old days, but all I saw was lockdowns and sourdough breads.
I guess hindsight really is 2020.
I guess hindsight really is 2020.
How often do you find yourself wishing for a newsletter that covered fundamental physics in way that was accessible but not dumbed down? Pretty often, I am sure!
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
The Spacetime Beat | Nirmalya Kajuri | Substack
All the cool fundamental physics you have been missing out on. Click to read The Spacetime Beat, by Nirmalya Kajuri, a Substack publication with hundreds of subscribers.
nirmalyakajuri.substack.com
November 9, 2025 at 5:21 PM
How often do you find yourself wishing for a newsletter that covered fundamental physics in way that was accessible but not dumbed down? Pretty often, I am sure!
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy!
nirmalyakajuri.substack.com
⚛️🧪
November 5, 2025 at 7:33 PM
Reposted by Nirmalya Kajuri
"My taxes fund your 🧪 research, I will decide what you work on"
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
October 19, 2025 at 9:19 PM
"My taxes fund your 🧪 research, I will decide what you work on"
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
"My taxes fund your 🧪 research, I will decide what you work on"
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
October 19, 2025 at 9:19 PM
"My taxes fund your 🧪 research, I will decide what you work on"
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research.
Second of all I have no funds can you actually send some
"Black holes give off the impression of being dark and brooding, absorbing all the light around them. But they are secretly musical."
I wrote about the music of black holes in my latest post. 🧪⚛️
open.substack.com/pub/nirmalya...
I wrote about the music of black holes in my latest post. 🧪⚛️
open.substack.com/pub/nirmalya...
Black Hole Beats
Ringing Black Holes can give Ringo Starr a run for his money
open.substack.com
October 9, 2025 at 2:16 AM
"Black holes give off the impression of being dark and brooding, absorbing all the light around them. But they are secretly musical."
I wrote about the music of black holes in my latest post. 🧪⚛️
open.substack.com/pub/nirmalya...
I wrote about the music of black holes in my latest post. 🧪⚛️
open.substack.com/pub/nirmalya...
The 2025 Nobel Prize in Physics goes to John Clarke, Michel Devoret, and John Martinis —
“for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
Here's what I understand of their work ⚛️🧪🧵
“for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
Here's what I understand of their work ⚛️🧪🧵
October 7, 2025 at 6:10 PM
The 2025 Nobel Prize in Physics goes to John Clarke, Michel Devoret, and John Martinis —
“for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
Here's what I understand of their work ⚛️🧪🧵
“for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
Here's what I understand of their work ⚛️🧪🧵
Why are there so many books on pop science 🧪 but so few on pop (academic) philosophy ?
October 6, 2025 at 12:03 PM
Why are there so many books on pop science 🧪 but so few on pop (academic) philosophy ?
AI will never be as smart as humans I say while making yet another decision prompted by algorithms
October 5, 2025 at 6:34 PM
AI will never be as smart as humans I say while making yet another decision prompted by algorithms
What counts as a quantum measurement? ⚛️
October 4, 2025 at 1:35 PM
What counts as a quantum measurement? ⚛️
The existence of Ringo Starr implies the existence of ringing black holes.
⚛️🧪
⚛️🧪
September 8, 2025 at 3:30 PM
The existence of Ringo Starr implies the existence of ringing black holes.
⚛️🧪
⚛️🧪
4459 Scientists from around the world have signed a statement on Gaza. The list includes 14 Nobel Prize winners, 5 Fields medalists, 21 Breakthrough Prize winners, and 34 Dirac Medalists.
t.co/bSC7HmJdso
t.co/bSC7HmJdso
https://sites.google.com/view/statement-by-scientists-gaza
t.co
September 6, 2025 at 8:46 AM
4459 Scientists from around the world have signed a statement on Gaza. The list includes 14 Nobel Prize winners, 5 Fields medalists, 21 Breakthrough Prize winners, and 34 Dirac Medalists.
t.co/bSC7HmJdso
t.co/bSC7HmJdso
Reposted by Nirmalya Kajuri
Hey, I'm not saying this is the single greatest astronomy book ever written. I'll let others come to realize that on their own.
Under Alien Skies by @philplait.bsky.social is a finalist for the One Book Sarasota program! www.sarasotacountylibraries.org/Home/Compone...
August 29, 2025 at 6:49 PM
Hey, I'm not saying this is the single greatest astronomy book ever written. I'll let others come to realize that on their own.
Motivated by @seanmcarroll.bsky.social 's thread about his ongoing QM course, I am also going to maintain an online journal here of my ongoing course "Special Topics in Quantum Mechanics."
⚛️🧪🧵
⚛️🧪🧵
August 29, 2025 at 5:43 PM
Motivated by @seanmcarroll.bsky.social 's thread about his ongoing QM course, I am also going to maintain an online journal here of my ongoing course "Special Topics in Quantum Mechanics."
⚛️🧪🧵
⚛️🧪🧵
Very cool
First day of classes at @jhuartssciences.bsky.social. A glorious day to learn #QuantumMechanics!
I'm teaching two courses - QM for physics majors, and Philosophy of Cosmology for a general audience. I'm going to try to maintain a thread saying what happens in each class, let's see how I do.
I'm teaching two courses - QM for physics majors, and Philosophy of Cosmology for a general audience. I'm going to try to maintain a thread saying what happens in each class, let's see how I do.
August 29, 2025 at 3:44 PM
Very cool
Math books are like
Examples of group:
Example 1: Integers under addition
Example 2: Tarski Monster group
🧪⚛️
Examples of group:
Example 1: Integers under addition
Example 2: Tarski Monster group
🧪⚛️
August 28, 2025 at 7:05 PM
Math books are like
Examples of group:
Example 1: Integers under addition
Example 2: Tarski Monster group
🧪⚛️
Examples of group:
Example 1: Integers under addition
Example 2: Tarski Monster group
🧪⚛️
Tim Nguyen breaks his silence on the Eric Weinstein episode.
Highlights: EW implying legal action against a podcast Tim critiqued GU in, Curt Jaimungal revoking his invitation to Tim, Sabine deleting Tim’s post from her blog but Lex Fridman cancelling EW
timothynguyen.org/2025/08/21/p...
⚛️🧪
Highlights: EW implying legal action against a podcast Tim critiqued GU in, Curt Jaimungal revoking his invitation to Tim, Sabine deleting Tim’s post from her blog but Lex Fridman cancelling EW
timothynguyen.org/2025/08/21/p...
⚛️🧪
Physics Grifters: Eric Weinstein, Sabine Hossenfelder, and a Crisis of Credibility
This is the story of how a circle of popular science communicators, who built their brands on championing free inquiry, worked to suppress scientific critique. Of how Eric Weinstein, the man who co…
timothynguyen.org
August 21, 2025 at 6:53 PM
Tim Nguyen breaks his silence on the Eric Weinstein episode.
Highlights: EW implying legal action against a podcast Tim critiqued GU in, Curt Jaimungal revoking his invitation to Tim, Sabine deleting Tim’s post from her blog but Lex Fridman cancelling EW
timothynguyen.org/2025/08/21/p...
⚛️🧪
Highlights: EW implying legal action against a podcast Tim critiqued GU in, Curt Jaimungal revoking his invitation to Tim, Sabine deleting Tim’s post from her blog but Lex Fridman cancelling EW
timothynguyen.org/2025/08/21/p...
⚛️🧪
Reposted by Nirmalya Kajuri
This week's post is about why spherical cows are physics' mascot ⚛️🧪
open.substack.com/pub/nirmalya...
open.substack.com/pub/nirmalya...
An Ode to the Spherical Cow
How Imperfect Models Drive Scientific Discovery
open.substack.com
August 17, 2025 at 10:58 PM
This week's post is about why spherical cows are physics' mascot ⚛️🧪
open.substack.com/pub/nirmalya...
open.substack.com/pub/nirmalya...
This week's post is about why spherical cows are physics' mascot ⚛️🧪
open.substack.com/pub/nirmalya...
open.substack.com/pub/nirmalya...
An Ode to the Spherical Cow
How Imperfect Models Drive Scientific Discovery
open.substack.com
August 17, 2025 at 10:58 PM
This week's post is about why spherical cows are physics' mascot ⚛️🧪
open.substack.com/pub/nirmalya...
open.substack.com/pub/nirmalya...
Great thread on resurgence!
THREAD: Resurgence
or: How do physicists keep getting away with ignoring infinitely big things?
I wrote about this back when everyone was still on twitter. Someone asked me a question and I think it's an excellent occasion to repost the thread.
1/20
or: How do physicists keep getting away with ignoring infinitely big things?
I wrote about this back when everyone was still on twitter. Someone asked me a question and I think it's an excellent occasion to repost the thread.
1/20
August 13, 2025 at 10:02 PM
Great thread on resurgence!
Boiling a black hole
August 13, 2025 at 8:40 PM
Boiling a black hole
Thanks @mmylova.bsky.social for creating the Cosmo feed! It's really improved my Bsky experience.
Suggest others to follow it too: bsky.app/profile/mmyl...
Suggest others to follow it too: bsky.app/profile/mmyl...
With many physicists arriving daily at Bluesky I’ve created a comprehensive list -which I update daily- with Cosmologists, Astrophysicists, Gravitational Wave Astronomers, Particle Physicists… Please SHARE so it reaches more people! 🤩 Warning: it may contain Mathematicians
bsky.app/profile/did:...
bsky.app/profile/did:...
August 13, 2025 at 8:30 PM
Thanks @mmylova.bsky.social for creating the Cosmo feed! It's really improved my Bsky experience.
Suggest others to follow it too: bsky.app/profile/mmyl...
Suggest others to follow it too: bsky.app/profile/mmyl...
Nice thread about Robertson and Walker of the FRW model, with a cameo from Fermi!
Writing about Robertson-Walker cosmology, and therefore digging a bit into the history. For some reason you don't hear too much about Howard P. Robertson and Arthur Geoffrey Walker, but of course they have interesting stories associated with them. #physics ⚛️ 🧪 🧵
August 13, 2025 at 1:51 PM
Nice thread about Robertson and Walker of the FRW model, with a cameo from Fermi!
New post on the occasion of Roger Penrose's birthday. Happy Birthday, Sir Roger!
How Roger Penrose trapped the Singularity open.substack.com/pub/nirmalya...
How Roger Penrose trapped the Singularity open.substack.com/pub/nirmalya...
How Roger Penrose trapped the Singularity
The story of Penrose's incredible proof of black hole singularities
open.substack.com
August 11, 2025 at 4:01 PM
New post on the occasion of Roger Penrose's birthday. Happy Birthday, Sir Roger!
How Roger Penrose trapped the Singularity open.substack.com/pub/nirmalya...
How Roger Penrose trapped the Singularity open.substack.com/pub/nirmalya...