Recent submissions

Comment · 1 year ago
If you have ever looked at an old transmission electron microscope with a viewing screen, you know electrons are green ; )
Comment · 2 years ago
True, but the comparison with old technology makes the video more interesting. The replacement for the hydraulic actuators and also the twin scanning system are motivated by the historical development.
Comment · 4 years ago
Comment · 4 years ago
Modern nanotechnology is a multi disciplinary approach using effects on the nanoscale for new technologies. Therefore people from different fields come together to synthesis, simulate, analyse etc. nanoparticles/systems. Of course in the media nanotechnology is this big catch all word, where everybody immediately thinks about self replicating nanomachines - this is still fiction. Eventhough nanotechnology has not fullfilled this science fiction promise of atom precise manipulation the result are still astonishing. Just to name a few: Computerchips, memorychips, displays, catalysts, composite materials, surface coatings…
Comment · 5 years ago
The connection is pretty stable and worked great during Homeoffice.
Comment · 5 years ago
12gb on mobil. Landline is without a cap, but I heard if you consistently download 5-10Tbs per Month, customer service might call and ask if you want a „better“ contract ; )
Comment · 5 years ago
Those were the measured speed +-3 Mbps. Sometimes inside of buildings my connection also drops back down to edge but I think this got way better in the last 2-3 years.
Comment · 5 years ago
Mobil: 360 down/50 up ~40€

Landline: 250 down/50 up ~50€

For the landline we also have the option of 1Gbps, but I dont want to pay for it.

Comment · 5 years ago
Do you use a digital labbook? If so what do you use? I am currently trying MS OneNote. Just pasting everything in. Pictures, screengrabs, thoughts parameters. But I am wondering if there is a better alternative.
Comment · 5 years ago
Comment · 6 years ago
This is the problem with historic games. Either you acknowledge the bad and good things, or you white wash the past. As the author notes at the end: „As I have argued here many times, fiction is often how the public conceptualizes the past and that concept of the past shapes the decisions we make in the present.“
Comment · 6 years ago
Maybe thinking about lightspeed as the upper speed limit helps? You could also think about the clock experiment by Hafele and Keating where two synchronised clocks where flown all over the globe and after a while they disagreed with each other. Or the popsci answer: Things that move fast get more massiv and time gets slower for them, at the speed of light time stops. Without time no speed.
Comment · 7 years ago
Wow! I was asked by a friend if dead/flat batteries were weighing less, since I was working a little bit with batteries. Back then I dismissed it as utter nonsense. But I still googled the question because you never know right? and I stumbled upon either this article or a similar one: https://www.quora.com/Is-a-charged-battery-heavier-than-a-de...

After finding and reading an answer that agreed with my initial assessment I never continued to investigate why my friend would make such a claim, but now I guess it was related to this phenomenon. Guess I owe somebody an apology. Crazy how somethings seem so outlandish that I did not even ask myself if this was possible or what fundamental differences there are between batteries of different states of charge. Also it would have been quite easy to test this in retrospective... Note to myself: I should be more careful and curious in the future!

Comment · 7 years ago
Very difficult to read. Some anecdotes were interesting but other than that I am not sure what my takeaway from this article is.
Comment · 7 years ago
I was also confused. I thought this article was about how the cold fusion hobbyist movement is dying down because the topic is becoming unpopular. Fusion and cold fusion are discussed from time to time here, so it is not super obvious.

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