Sunday, July 14, 2024

New Batteries: It's not all hype

Despite dozens of press releases on new battery technologies being released every week, not much is happening. This is why I don't talk about battery tech any more. But recently I read an interesting study about the hype cycle of battery technology. Let’s have a look.

Saturday, July 13, 2024

This Quantum Puzzle Tripped Me Up

I was recently reminded of a quantum puzzle that tripped me up and I wanted to share it with everyone to see if you could figure it out. Let’s have a look.

Thursday, July 11, 2024

The Hydrogen Economy is Expensive Nonsense

Germany, the United States, the UK, the EU, and many other countries are looking toward hydrogen to be a clean miracle fuel to power the future. It sounds good at first, but hydrogen has a bunch of problems - one of which is that it’s highly inefficient.

Wednesday, July 10, 2024

Micro Fractals Could be Key to New Quantum Computers

recently saw some headlines saying that microbiologists discovered a protein that spontaneously folds into a fractal. I was jealous until I found out that we have microscopic fractals in physics, too. And even more amazing, these could form the basis of a new type of quantum computer -- in 1.58 dimensions. Let’s have a look.

Tuesday, July 09, 2024

Stop blaming fossil fuel companies – Climate Change is our own fault

Climate change has been heavily fuelled (ha) by fossil fuels, but can we really put the blame on the fossil fuel industry? Could they really have known what all the world's scientists didn't know? I don't think so. It's time we stop blaming others for our own faults.

Sunday, July 07, 2024

Time ran slower in the past, study finds

Physicists from the University of Queensland in Australia have found evidence that time ran slower in the past. In this video I explain how time-dilation is related to redshift, what that means for light from distant galaxies, and what happens to an observer who falls into a black hole.

This video comes with a quiz which you can take here:

Saturday, July 06, 2024

Why I'm embarrassed to be German

In this video I want to make a personal statement to explain why I'm unhappy about the way that my country has been developing. Germany is not what it used to be.

Friday, July 05, 2024

AI could prove that reality doesn’t exist, physicists say

A group of physicists wants to use artificial intelligence to prove that reality doesn’t exist. They want to do this by running an artificial general intelligence as an observer on a quantum computer. I wish this was a joke. But I’m afraid it’s not.

Wednesday, July 03, 2024

Physicists Claim They Can Send Particles Into the Past

Can you really send a particle into the past? New Scientist published an article about this last week, and though I’m quite fond of the concept of retrocausality, I’m afraid to say that reality is much less interesting than fiction. Let’s have a look.

Tuesday, July 02, 2024

Why Bill Gates’ New Natrium Reactor is a Big Deal

Bill Gates has financed a nuclear reactor in Wyoming that just started construction. It’s what’s known as a Natrium Reactor and uses a sodium-cooled fast reactor combined with an energy storage system. That's a lot of words, but just what does the thing do? Let’s have a look.

Sunday, June 30, 2024

GPT passed the Turing Test -- And No One Noticed

The Turing test used to be the key benchmark for artificial intelligence. The idea, going back to Alan Turing, was that a human interrogator would have a chat with a respondent, and the human needs to figure out whether the respondent is either human, or an AI. GPT has now officially passed that test. Would you be able to tell it apart from a human?

Saturday, June 29, 2024

What will they think about us in 2085?

The more depressing the present becomes, the more I like thinking about the future. Here I have collected some speculations about what changes are on the horizon, from the end of monogamy to autonomous vehicles and synthetic wombs.

Thursday, June 27, 2024

Superintelligent AI Will Try to Control Us, Geoffrey Hinton Says

A heated debate was recently ignited after Geoffrey Hinton gave an interview in which he says he is very worried that we will soon lose control over superintelligent AI. Meta’s AI chief Yann LeCun disagrees with the concern, and I… I think they’re both wrong. Let’s have a look.

Wednesday, June 26, 2024

MOND is so back

One of the biggest ongoing dramas in science is whether or not dark matter is real. A new update speaks strongly against dark matter and gives a boost to its alternative: Modified Newtonian Dynamics. Let’s have a look.

Tuesday, June 25, 2024

String Theorists Have Calculated the Value of Pi

String theorists have calculated the value of pi. Didn’t we already know the value of pi? At least the first one hundred trillion digits or so. Yes, but this is an interesting story about the relation between maths and physics. Let’s have a look.

This video comes with a quiz which you can take here:

Sunday, June 23, 2024

Why do people hate scientists?

A lot of people seem to dislike scientists. A recent poll in the United States showed that 7% of Americans think that scientists are not likeable. Is this a global trend? What are some reasons people don’t like scientists? Here are my thoughts.

Saturday, June 22, 2024

Climate scientists can’t agree on how warm it is

I recently read that the world has crossed 1.5 degrees of warming above the pre-industrial level, the limit set in the Paris agreement. Then I read that we crossed it several years ago. Then some climate scientists objected. Why can’t climate scientists agree on how warm the Earth is? Have we already broken the Paris agreement? I have the summary.

Thursday, June 20, 2024

Biggest Self-Own in Quantum Computing, Ever

Quantum computing, so the fairy tale goes, is the next big thing in technology. News has popped up time and time again noting major advancements in the field, but the latest statement from company D-Wave had people scratching their heads. Are quantum computers really the next big thing? Who’s at the forefront of the field now? Let’s have a look.

Wednesday, June 19, 2024

Gravity Without Mass Could Explain Dark Matter

I recently read that you can have gravity without mass. Ha, no way, I thought and had a look at the paper. It's wild, people. The author says that there are hollow spheres scattered across the universe that have no gravitational attraction and that these spheres explain dark matter. I will try to sort it out for you.

Tuesday, June 18, 2024

This New Idea Could Explain Complexity

The universe creates complexity out of simplicity, but despite many attempts at understanding how, scientists still have not figured it out. We do know that complexity relies on the emergence of new features and laws, but then again we don't understand emergence either. The first step must be to clearly define what we are talking about and to measure it. A group of scientists now put forward a way to do exactly this. Let’s have a look.