Paul Halpern ✓

@phalpern · Philadelphia · joined 16 Jan 2009

Physicist and Science Writer. Author of 19 books, most recently THE GREAT ATOM DEBATE: ERNST MACH, LUDWIG BOLTZMANN, AND THE BATTLE FOR THE ESSENCE OF REALITY

34 068Followers

11 989Following

31 341Posts total

20.4KViews on collected posts

Derniers posts

Paul Halpern ✓@phalpern16 Sep

@phalpern This is so true 30 views · 1 likes · 0 reposts · 0 replies Open on X →

Paul Halpern ✓@phalpern16 Sep

@phalpern Lmao you're all still working on THAT?!🤣 All it ever was was a THOUGHT EXPERIMENT. HOW MUCH ENERGY DOES A THOUGHT CONSUME AND/OR PRODUCE. Hope you didn't waste as much time as HE did🤣 79 views · 0 likes · 0 reposts · 0 replies Open on X →

Paul Halpern ✓@phalpern16 Sep

@phalpern A wonderful trace of the Work of Einstein. 181 views · 9 likes · 6 reposts · 3 replies Open on X →

Paul Halpern ✓@phalpern16 Sep

The epic battle that shaped the very future of physics. THE GREAT ATOM DEBATE History of science at its most riveting! New book now available for preorder: https://t.co/IeslcllbNr https://t.co/4TLjzgusSs https://t.co/dPiFSHUFMC

1.1K views · 23 likes · 5 reposts · 1 replies Open on X →

Paul Halpern ✓@phalpern16 Sep

'I cannot seriously believe in [quantum mechanics] because the theory cannot be reconciled with the idea that physics should represent a reality in space and time, free from spooky actions at a distance.' -Albert Einstein to Max Born March 3, 1947 #histSTM https://t.co/0lfM3fF

2.4K views · 70 likes · 15 reposts · 12 replies Open on X →

Paul Halpern ✓@phalpern15 Sep

From Lise Meitner and Chien-Shiung Wu to Jocelyn Bell Burnell and Fabiola Gianotti: Some of the pioneering women who changed the face of physics: https://t.co/MIgN3D2ECM #histSTM #WomenInSTEM #PerimeterInstitute https://t.co/wa6wXrMv3j

1.2K views · 34 likes · 16 reposts · 2 replies Open on X →

Paul Halpern ✓@phalpern15 Sep

The only known photograph of Albert Einstein explaining his famous equation 'E = m c^2' on a blackboard. He was giving a public talk at the Carnegie Institute of Technology (now Carnegie Mellon University) in Pittsburgh, PA, USA, on December 28, 1934. https://t.co/pzTastrvXV

8.7K views · 117 likes · 35 reposts · 6 replies Open on X →

Paul Halpern ✓@phalpern23 Aug

In the golden age of Vienna, two brilliant thinkers vied to shape the future of physics. Their passionate struggle led directly to the quantum and relativity revolutions. History of science at its most gripping! THE GREAT ATOM DEBATE Preorder now: https://t.co/1rqtIaRjjb https

6.7K views · 95 likes · 27 reposts · 6 replies Open on X →

Face aux comptes de taille comparable

8 posts des 90 derniers jours, à côté de la tranche de 10K–100K abonnés. portée ordinaire pour sa taille, réaction plus forte que la moyenne.

Vues médianes1 170ce compte964médiane pour 10K–100K

Portée, %3.43%ce compte3.55%médiane pour 10K–100K

Engagement, %2.96%ce compte1.59%médiane pour 10K–100K

Indicateur	Ce compte	Médiane pour 10K–100K	Rapport
Vues médianes par post	1 170	964	1.21×
Portée (vues ÷ abonnés)	3.43%	3.55%	0.97×
Taux d'engagement	2.96%	1.59%	1.87×

Autres comptes de cette tranche → Comparer avec un autre compte → Comment ces repères sont établis →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

6.7K23 Aug

8.7K15 Sep

1.2K

2.4K16 Sep

1.1K

181

Last 8 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

1.93%23 Aug

1.85%15 Sep

4.27%

4.11%16 Sep

2.59%

9.94%

0.00%

3.33%

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.59%.

What the audience does

Likes64.7%349 in total

Reposts19.3%104 in total

Replies5.6%30 in total

Quotes1.1%6 in total

Bookmarks9.3%50 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Derniers posts

Face aux comptes de taille comparable

Growth & engagement

Views per post

Engagement rate per post

What the audience does

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