Viewing profile — tullatulla

* cannot resolve atoms on a surface, in transmission mode (STEM) and with the right sample, as in the article it's another story.

Small correction: Scanning tunneling microscopes can do that. They are basically a very sharp tip scanned across the surface. Scanning electron microscopes, where a beam of electro…

I believe you can only make playlists available offline. So, you would have to create a playlist containing that single song and then there should be a download button (didn't test…

160 wafers per hour, not minute. Still impressive

Well you don't need a bike for walking, so that's gotta count for something (if efficiency is defined as total energy spent per distance)

Well, you would need a template with 8x smaller features than a EUV mask (at least in one direction, 4x in the other). Ebeam lithography can in principle do this, but it's at the r…

Can also highly recommend the translated version!

What's going on with Figure 1? Caption and legend don't match and bars are stacked? And here I thought Nature has some standards...

Definitely a better choice than paracetamol, which is metabolized by the liver...

Oh yes you are right! That's apparently part of the first 1MeV TEM. Should be the high voltage source for the electron gun. The electron optics were most likely magnetic, not elect…

Those have nothing to do with the microscope. A STM is basically a very sharp needle flying just above the surface and measuring the tunneling current with a few volts applied at m…

If you don't mind moving to Germany, check out Carl Zeiss (SMT). We supply the optics to ASML and also make our own semi equipment directly sold to fabs. Lots of growth and interes…

You would really need a free electron laser to produce sufficient photons at the desired wavelength. The lower the wavelength, the less photons you have at constant power, so shot …

Looks like the peak ICU occupation in Germany has clearly passed: 11/04: 2088, 76% on ventilators 10/04(?): 2453, 76% -"- 04/04: 2680, 83% -"- 03/04: 2421, 83% -"- 02/04: 2139, 83%…

Pharmact lateral flow test had zero false positives among 126 negative samples as far as I can see: https://www.nature.com/articles/d41587-020-00010-2 https://pharmact.eu/ Don't kn…

The author seems to mix up Gibbs free energy with entropy. The remark that thermal equilibrium equals maximum entropy is simply wrong. All examples can be explained with minimizati…