Ozempic and Wegovy: All you need to know about the new weight-loss drugs

The weight-loss drugs Wegovy and Ozempic seem god-sent solutions for everyone who’s been struggling to lose weight, a miracle cure for a problem that befalls billions of people, even Elon Musk. But what makes the drug so effective? What do we know about it? And who’s going to pay for it?


NEW: This video comes with a quiz on QuizWithIt.

Coin tosses are not fair -- science says so

Today we talk about why coin flips are not fifty-fifty, starquakes, the most powerful solar storm ever, space debris, IBM’s new brain-inspired computer chip, an exoplanet collision, a new tectonic plate, projections for AI power consumption, and of course the telephone will ring.

This video comes with a quiz!

How does quantum mechanics give rise to parallel universes?

The idea of parallel universes has captured the imagination of many. In physics, it's prominently represented by the “Many Worlds” interpretation of quantum mechanics. In this video, I want to explain how the Many Worlds Interpretation works. Is it science? Does it solve any problems? And are the parallel universes real?


NEW: This video comes with a quiz on QuizWithIt.

3 New Laws of Nature in One Week!

This week we talk about three new laws of nature, one of which supposedly shows that we live in a computer simulation. We’ll have a first look at intergalactic filaments, talk about building roads on the moon, whether chatbots understand what they chat about, a new type of qubit with a low error rate, sound waves in crystals, how to deflect lasers with nothing but air, dunes on mars, the first hurricane prediction market, and of course, the telephone will ring.

This video comes with a quiz!

Is time travel possible?

What does physics say about time travel? Surprisingly enough it doesn't just say it's impossible, it's more complicated that that. In this video I'll sort out what Einstein's general relativity and quantum mechanics tell us about time travel. And is MIT really building a time machine to find dark matter? We'll get to that.


NEW: This video comes with a quiz on QuizWithIt.

Planet Mercury is Shrinking

Today we’ll talk about a new candidate for a cosmic string, the mysterious shrinking of planet Mercury, a nuclear clock, the first quantum engine, a simulator for human diseases, whether we can find new physics with spinning black holes, AI that wants to help find aliens, how to compute with photons, and of course, the telephone will ring.

This video comes with a quiz!

Quantum Computing Newcomers: 2023 Update

In this video I look at what happened in quantum computing recently. In particular I want to talk about some newcomers like topological quantum computing, photonic computing, and optical tweezers. And whatever happened to ion traps?



NEW: This video comes with a quiz on QuizWithIt.

Physics Nobel Prize 2023 for Super-Short Laser Pulses

Today we’ll talk about the Nobel Prize in physics, yet another superconductor retraction, whether Integrated Information theory is pseudoscience, why antimatter doesn’t anti-gravitate, sand that flows uphill which I swear has nothing to do with antigravity, the world’s most powerful X-ray laser, how life could come about on other planets, why we might go extinct sooner than expected, and of course, the telephone will ring.

This video comes with a quiz!

How I reached 1 Million Subscribers on YouTube -- And you can, too.

We’ve made it to 1 million subscribers! Thank you all for making this happen. To honour the occasion, I want to summarize some of my thoughts about how YouTube works and what works on YouTube.



Transcript, links to references, and discussion on Patreon.

Quantum Computing at Room Temperature?

Today we’ll talk about raisins. Yes, raisins. Quasars with dark matter halos, pink diamonds, the last moments of a dying satellite, a new type of qubit, maybe, how to measure the length of the day with lasers, a new treatment method for brain cancer that’s got something to do with quantum mechanics, whether climate change drives migration, and of course, the telephone will ring.

Transcript, links to references, and discussion on Patreon.

A written version of our weekly Science News goes out on Substack
NEW: We now also have a podcast!

Does the Universe have a Purpose?

If people knew one thing about Steven Weinberg, it’d be a quote from one of his books: “The more the universe seems comprehensible, the more it also seems pointless.” In this video, I want to speculate about what he might have meant. Is the universe pointless?



Transcript, links to references, and discussion on Patreon.

Possible signs of life on an exoplanet

Today we talk about the possibly first evidence for life on an exoplanet, with some caveats, chaos at the centre of the Milky Way, earthquake lights, a really old rock, noise cancellation for qubits, good news about air pollution, wifi that can see through walls, origami robots, the 2024 Breakthrough Prizes, and of course, the telephone will ring.

Transcript, links to references, and discussion on Patreon.

A written version of our weekly Science News goes out on Substack
NEW: We now also have a podcast!

Don't trust me, I'm an influencer

In this video, I talk about how we talk, or how we communicate information on social media in general. Why is it so difficult to communicate on social media, what’s a parasocial relationship, and what are the problems with it?



Transcript, links to references, and discussion on Patreon.

Climate scientist boasts about fudging own paper

Today we talk about a bubble of galaxies, a climate scientist who made his own paper worse, double magic oxygen, a chemical reaction slowed down 100 billion times, maxwell’s demon in biology, intelligent life on earth, the launch of a new X-ray space mission, drone racing, and of course the telephone will ring.

Transcript, links to references, and discussion on Patreon.

NEW: We're now also on Substack!

All you need to know about web3

What is web3? I've tried to figure it out and here is my summary of what I have learned. Tbh I have been a little befuddled by what's going on. Let me know what you think about all that in the comments.



Transcript, links to references, and discussion on Patreon.

Capitalism is good. Let me explain

Is capitalism the reason the world is going to hell in a hand basket? Or is it going to save us? What is capitalism anyway? How does money work and when do free markets fail? This video is a brief summary of a dip I did into microeconomics literature in a dark hour of my life.



Transcript, links to references, and discussion on Patreon.

Do your own research. But do it right.

It's of course totally okay if you do your own research. But you should watch out for a few things.



Transcript, links to references, and discussion on Patreon.

Quantum Superchemistry: First Experimental Observation

Today we talk about superchemistry, music in the brain, how to create matter from light, contrails, objects that take strange turns, why phone batteries might soon become replaceable, how to control fire, why we have to think about preventing hurricanes, and of course, the telephone will ring.

Transcript, links to references, and discussion on Patreon.

NEW: We're now also on Substack!

A global mental health crisis? Really?

It's in the headlines everywhere that the world is going through a mental health crisis. Though, when you take a closer look, all the headlines are coming from the United States. Is there a global mental health crisis? Is it localized to just the US? That's what we talk about today.



Transcript, links to references, and discussion on Patreon.

Sun is brighter than we thought

Today we talk about the muon anomaly at fermilab, say good-bye to LK99, hear from scientists who say that sun is brighter than we thought, look at a new ion trap, talk about talk about a cold blob, plans for a new space station, delay with NASA’s trip to the moon, freeze rays, the smallest traffic light ever, and of course, the telephone will ring.

Transcript, links to references, and discussion on Patreon.

NEW: We're now also on Substack!