# Critical Mass Science, Culture, Reason, Public Policy, & Fascinating Ideas Page: Feed: --- ## [(Ad-free Video) Physics for Everyone, Lecture 4. The Beating Heart of Modern Physics: The Dog Who Didn't Bark in the Night.](https://lawrencekrauss.substack.com/p/ad-free-video-physics-for-everyone-b09) _2026-08-18 · Lawrence M. Krauss_ Symmetry in physics is more powerful and nuanced than it is in art. Almost all of modern physics comes down to exploring symmetry, and, often even more important, its absence. ## [Physics for Everyone, Lecture 4. The Beating Heart of Modern Physics: The Dog Who Didn't Bark in the Night.](https://lawrencekrauss.substack.com/p/physics-for-everyone-lecture-4-the) _2026-08-18 · Lawrence M. Krauss_ Symmetry in physics is more powerful and nuanced than it is in art. Almost all of modern physics comes down to exploring symmetry, and, often even more important, its absence. [Listen](https://api.substack.com/feed/podcast/211656818/220c4d26e2e7f90f695495b87c045130.mp3) ## [The greatest threat to modern society?](https://lawrencekrauss.substack.com/p/the-greatest-threat-to-modern-society) _2026-08-09 · Lawrence M. Krauss_ The standard existential threats, like AI and nuclear weapons may not be the most immediate threat to modern civilization. ## [(Ad-free Video) What's New in Science with Sabine and Lawrence | Cosmic oddities, Black Hole normalities, Quantum Batteries, and remote-controlled cockroaches](https://lawrencekrauss.substack.com/p/ad-free-video-whats-new-in-science-260) _2026-08-03 · Lawrence M. Krauss_ Sabine and I once again explore fascinating claims about the universe, some of which may be right, and some new proposed experiments that could shed light on current mysteries, or produce new ones. ## [What's New in Science with Sabine and Lawrence | Cosmic oddities, Black Hole normalities, Quantum Batteries, and remote-controlled cockroaches](https://lawrencekrauss.substack.com/p/whats-new-in-science-with-sabine-6a3) _2026-08-03 · Lawrence M. Krauss_ Sabine and I once again explore fascinating claims about the universe, some of which may be right, and some new proposed experiments that could shed light on current mysteries, or produce new ones. [Listen](https://api.substack.com/feed/podcast/209468622/45572e3ac99ff37df9a06b96ce81501a.mp3) ## [(Ad-free Video) Saving a Family from Afghanistan](https://lawrencekrauss.substack.com/p/ad-free-video-saving-a-family-from) _2026-07-29 · Lawrence M. Krauss_ For three years a remarkable family from Afghanistan has been in hiding awaiting final paperwork to emigrate to Canada. If ever a family deserved to escape to freedom this is one. ## [Saving a Family from Afghanistan](https://lawrencekrauss.substack.com/p/saving-a-family-from-afghanistan) _2026-07-29 · Lawrence M. Krauss_ For three years a remarkable family from Afghanistan has been in hiding awaiting final paperwork to emigrate to Canada. If ever a family deserved to escape to freedom this is one. [Listen](https://api.substack.com/feed/podcast/208942709/afe8ee3808c76a82dd5ea81ce8b7d048.mp3) ## [(Ad-free Video) Physics for Everyone, Lecture 5: The Unification that Changed the World](https://lawrencekrauss.substack.com/p/ad-free-video-physics-for-everyone) _2026-07-07 · Lawrence M. Krauss_ The development of the modern understanding of electricity and magnetism not only changed the modern world, it guided our understanding of fundamental physics. ## [Physics for Everyone, Lecture 5: The Unification that Changed the World](https://lawrencekrauss.substack.com/p/physics-for-everyone-lecture-5-the) _2026-07-07 · Lawrence M. Krauss_ The development of the modern understanding of electricity and magnetism not only changed the modern world, it guided our understanding of fundamental physics. [Listen](https://api.substack.com/feed/podcast/205712256/1df93b999743e86c4528cc1e4ffdbecb.mp3) ## [Try Before You Buy, Risk-Free (Sponsored)](https://crawlproof.com/a/Lnel0ZrZOm4L) _2026-07-07 · **Sponsored**_ Free trial hosting plus refunds processed in 12-24 hours, guaranteed. ## [My Wall Street Journal Article on Compelled Speech and Gender in BC](https://lawrencekrauss.substack.com/p/my-wall-street-journal-article-on) _2026-06-29 · Lawrence M. Krauss_ Tolerating offensive claims is the price of freedom, because outlawing falsehood allows governments to outlaw truth as well.