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how the laser happened

There was a thread somewhere above about photon wave/particle duality. This is worth reading: https://www.amazon.com/Ho...
43 comments posted 2yrs
posted by jl
43 comments posted 2yrs posted by jl

Re: OT: Democracy in Action - German Style!

> > >> > I had > thought better of you but it seems you're firmly in the Sloman camp here. > Fortunately it's a very sm...
0 comments posted 2yrs
posted by bill.sloman
0 comments posted 2yrs posted by bill.sloman

OT: China Fuelling US Overdose Epidemic

"Why did the government do more to stop the distribution of Ivermectin and Hydroxycloroquine for Covid than to stop the...
0 comments posted 2yrs
posted by cd999666
0 comments posted 2yrs posted by cd999666

Chinese semiconductors

https://www.tomshardware.com/tech-industry/major-chinese-semiconductor-company-goes-bankrupt-23-others-recently-withdrew...
16 comments posted 2yrs
posted by jl
16 comments posted 2yrs posted by jl

Fast monostable with a transistpor array

One option John Larjkin doesn't seem to have explored is using Renesas HFA3096 five transistor array as basis for his m...
36 comments posted 2yrs
posted by bill.sloman
36 comments posted 2yrs posted by bill.sloman

another fast one-shot

Here's another idea for a fast one-shot. This is the just-apply-money version and should get close to 1 ns pulse width...
18 comments posted 2yrs
posted by jl
18 comments posted 2yrs posted by jl

Re: Fun physics writeup

> Neutrinos: The inscrutable “ghost particles” driving scientists crazy > They hold the keys to new physics. If only we...
4 comments posted 2yrs
posted by bill.sloman
4 comments posted 2yrs posted by bill.sloman

Transfer function reduction math

The "Lecture Notes in Control and Information Sciences" can be a fascinating book to page through, particularly if you...
7 comments posted 2yrs
posted by user
7 comments posted 2yrs posted by user

LT Spice updates

LT Spice used to have a tool called Sync Release. It's now called Update Components. That seems to work. But the separa...
6 comments posted 2yrs
posted by jl
6 comments posted 2yrs posted by jl

surfmount tantalum caps

https://www.digikey.com/en/products/detail/murata-electronics/ECASD31C476M040KA0/10413853 Kemet has some too. Has anybo...
2 comments posted 2yrs
posted by jl
2 comments posted 2yrs posted by jl

Quantum mystics

I just watched a talk by Anton Zeilinger, professor of physics at the university of Vienna, and 2022 Nobel laureate, ab...
43 comments posted 2yrs
posted by jeroen
43 comments posted 2yrs posted by jeroen

TOT: Kitchen Appliances

Gentlemen, That other thread on UK power outlets and appliances reminded me of this.... I don't get the chance to get b...
4 comments posted 2yrs
posted by cd999666
4 comments posted 2yrs posted by cd999666