Thursday already! Sorry, I forgot to put out the post yesterday -- the war in Ukraine has taken up a lot of my brainpower in the past days. I find the developments very disturbing on a number of le...
2022-03-03 07:21:58 +0000 UTC View Post
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This video is about Roger Penrose’s idea for the beginning of the universe and its end, conformal cyclic cosmology, CCC for short. It’s a top...
2022-02-26 13:01:01 +0000 UTC View PostAs you can tell I have some favorite topics that I keep coming back to. Quantum mechanics is without doubt one of them. Another one is astrophysics and cosmology. Up on the coming weekend is a topi...
2022-02-23 14:01:38 +0000 UTC View Post
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Physicists have shown that objective reality doesn’t exist. This is a2022-02-19 13:01:01 +0000 UTC View Post
Some headlines raise more questions than they answer, and that's certain the case for quantum mechanics. In all honesty, I often don't understand popular science articles about quantum mechanics be...
2022-02-16 05:43:16 +0000 UTC View Post
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Scientists are rational by profession. They objectively evaluate the evidence and carefully separate fact from opinion. Except of course they don...
2022-02-12 13:01:02 +0000 UTC View PostPeople often ask me where I find topics for my YouTube channel, how I come up with ideas. The truth is that I usually just talk about what is currently on my mind. This weekend we'll talk about a t...
2022-02-09 06:01:07 +0000 UTC View Post
[This is a transcript of the video embedded above. Some of the explanations may not make sense without the animations in the video.]
According to the American Center for Disease Control and P...
2022-02-05 13:00:05 +0000 UTC View PostWe have now spent 2 years living in a global pandemic. As everyone else I hope that omicron is the last big wave. On Saturday I will talk about what COVID did to life expectancy. Last year the CDC ...
2022-02-02 06:50:43 +0000 UTC View Post
The James Webb Space Telescope has finally launched. And that’s exciting not just for astrophysicists, but for all space lovers. What makes the Webb telescope new and different? What is it lookin...
2022-01-30 17:12:39 +0000 UTC View Post
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Earthquakes are much more common than you might expect. An earthquake of magnitude 6 and up happens every couple of days somewhere on the planet....
As announced last week, this Saturday we'll talk about short-term predictions for Earthquakes, that are predictions which give people time to evacuate a city or at least seek shelter. The variety o...
2022-01-27 06:34:57 +0000 UTC View Post
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Earthquakes are the most fatal natural disasters. According to 2022-01-22 13:01:02 +0000 UTC View Post
Did you see the satellite footage of the Tonga eruption? Here is an amazing clip of the shock wave t...
2022-01-20 17:01:13 +0000 UTC View Post
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Warp drives are not just science fiction. Einstein’s theory of general relativity says they should be possible. Yes, that guy again!
A y...
I sometimes find it curious what research makes headlines. Eg there are a lot of breakthroughs in material science that concern battery technologies or photovoltaics that could have a huge impact o...
2022-01-13 06:40:10 +0000 UTC View Post
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The politics of climate change receives a lot of coverage. The science, not so much. That’s unfortunate because it makes it very difficult to t...
2022-01-08 13:00:04 +0000 UTC View PostIt's become difficult to talk about climate science because the topic is so politicized. That's really unfortunate, I think, because how can we sort out the politics without discussing the science?...
2022-01-05 13:00:06 +0000 UTC View Post
[This video is about pronunciation. The transcript won’t make sense without the audio!]
It never occurred to me that one day people might want to hear me speak in a foreign languag...
2022-01-01 13:00:05 +0000 UTC View PostI hope you are all having a little break in your life and find some time to relax. For me, this has been an adventurous year despite ongoing COVID interruptions. I found two people to help me with ...
2021-12-30 06:56:14 +0000 UTC View Post
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Happy holidays everybody, today we’re celebrating Isaac Newton’s birthday with a hand selected collection of nerdy Christmas facts that you c...
2021-12-25 13:01:02 +0000 UTC View PostIt just so happens that this year both Christmas day and New Year's day are a Saturday. So we have been thinking about how to honor the occasion without being too cheesy about it, and decided to se...
2021-12-22 11:39:25 +0000 UTC View Post
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Superdeterminism is a way to make sense of quantum mechanics. But some physicists and philosophers have argued that if one were to all...
2021-12-18 13:01:01 +0000 UTC View PostTwo years ago, I began doing videos about quantum mechanics and, among other things, the measurement problem. I promised you back then I would explain how superdeterminism solves the measurement pr...
2021-12-15 06:43:43 +0000 UTC View Post
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A few weeks ago I talked about hypersonic flight and why that doesn’t make sense to me. A lot of you asked what’s with Elon Musk’s hyperloo...
2021-12-11 13:00:04 +0000 UTC View PostA few weeks ago we talked about hypersonic flight and whether that makes any sense. When I looked into the topic, I went away rather skeptical. Even leaving aside the sonic boom issue (on whi...
2021-12-08 15:05:10 +0000 UTC View Post
Is it ant-ee-matter or ant-ai-matter? What do ants think about it and why isn’t aunt pronounced aunt. These are all good questions that we’ll not talk about today. Instead I want to ...
2021-12-04 13:00:04 +0000 UTC View PostLast week we talked about anti-gravity and why anti-matter doesn't fall up. This weekend we will talk about a related yet different question, namely, why is there so much more matter in the univers...
2021-12-01 17:58:17 +0000 UTC View Post
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One of the lesser known facts about me is that I’m one of the few world experts on anti-gravity. That’s because 20 years ago I was convinced that repuls...
2021-11-27 13:00:03 +0000 UTC View PostI got into physics by reading science fiction and one of the technologies that has always fascinated me most was -- no, not the transporter -- but anti-gravitational devices. Imaging jumping off a ...
2021-11-24 15:27:48 +0000 UTC View Post