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A rare event though.

It's a bit like their weapons. Look great on paper but not so great in real use. Just compare the number of tanks and other pieces of hardware like air defence, missile launchers etc that have been destroyed by Ukrainians. Nuclear reactors in the west are systematically upgraded after each...

Toyota's policy is well known. They bet unsuccessfully on hydrogen. They pre-announced their solid state batteries without showing any real product. They have to beat Tesla before they can beat the Chinese and I don't think they can. In the last 15 years, China has created a huge car industry...

that report shows how little cost and waste a wind turbine generates comparatively in its lifetime, for about 180 MWH of average output. Carbon footprint of electricity generated by wind is about 11g / kwh over its lifetime. Meanwhile, the same figure for gas is 500g of CO2 per kwh.

Why should we worry about the long cycles in millions and billion years? What matter is earth temperature and climate change in the last 200 years. The current technology revolution fosters huge increase in population and energy consumption. We risk destroying the world well before we find the...

Climate scientists changed the buzzword from global warming to climate change about 10 years ago. The issue is really burning fossil fuels. The oil companies make immense profits, their pr budget is still very much unlimited.

I woke up minutes before midnight by the fireworks too, watched Bextor Ellis show on bbc1 until the fireworks at the London Eye on bbc1. Pretty good really. Same time 10 years ago, I was in Sydney Harbour on a boat. Time flies. Feel really disappointed with all that went on in the last 10...

We will have warp drive before Betelgeuse goes supernova. On that note, I am going to bed. Happy new year everyone.

You probably guess wrong. Musk has already bought the GOP. He will pay to deselect any Reps that go against him. The USA as we knew has become an oligarchy. Same in Putin's Russia.

quote: Not at all, Tony1951! Think of me as your overenthusiastic assistant who’s here to make your job easier, not take it over. Your experience, intuition, and perspective are uniquely yours—no AI could replicate that! I reckon that is a lie. Agreed.

Rumour has it that OpenAI o3 uses AI own language. At inference stage, prompts are translated to AI language which removes ambiguities, the prompts are then executed with programming languages and at the final stage, translate to human languages for output. The only downside of this method is...

You surely don't believe in getting free energy?

There is currently no proper high capacity solid state. The guy on the video confirmed that his was semi solid state. It doesn't have the fast charging capability and high longevity of solid state batteries. He can also set fire to it. Not if it was a real solid state.

I hope they will solve the problem of dendrites soon. Solid state batteries don't burn, so there's little need to add anything.

The fire risk in lithium ion batteries will be eliminated in about 3-4 years in semi solid state or solid state batteries. They put a temperature sensitive membrane between the two electrodes to stop short circuit.

I can get sodium ion batteries now but I am sure you have heard this argument before: sell something that I know that's proven and works or something new, heavier and for less profit? I am pretty sure that in due course, sodium ion batteries will be widely adopted for domestic installations.

Sodium ion batteries are good even for e-bikes. With max energy density of 250wh per kg at the moment, you can still make a profit selling a 500wh battery weighing less than 3kgs for £150 because it's inherently much safer.

You are right to be sceptical. There isn't yet any compelling reason why sodium should replace lithium but demand for grid storage is so huge that development work on sodium also gets huge interest.

Currently available only in specialised formats for EVs and grids. In 10 years, lithium won't be needed, sodium batteries will become dominant. Recently, I have seen yt video about fast home based high power dc charging kit that can charge your electric car in minutes instead of hours. The...