Search found 280 matches

by Dan Knapp
Tue Mar 31, 2020 2:42 pm
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

Frank, I would take issue with your statement that it was unexpected. Take a look at Bill Gates 2015 Ted Talk (https://www.ted.com/talks/bill_gates_the_next_outbreak_we_re_not_ready?language=en). He and others have been trying to ring the alarm bell for years. Those who study these things fully expe...
by Dan Knapp
Tue Mar 31, 2020 11:48 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

I have been giving thought to how we can get a handle on asymptomatic disease penetration into areas that are not yet hot spots. It has been said that officials in hot spots are all saying “we should have done something sooner,” while those in areas not yet hot spots are saying “we don’t need to tak...
by Dan Knapp
Sun Mar 29, 2020 11:48 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

For those interested in the hydroxychloroquine issue, the report of the study in France that prompted it Is available online without a paywall (Hydroxychloroquine and azithromycin as a treatment of COVID-19: results of an open-label non-randomized clinical trial - https://www.sciencedirect.com/scien...
by Dan Knapp
Fri Mar 27, 2020 2:35 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

We need to vastly increase our testing capacity to get a handle on where we are. Areas that appear to be relatively unaffected are likely to have significant infection that just hasn’t manifested itself yet. It was interesting to hear Bill Gates on TV tonight. I was surprised to learn that it was hi...
by Dan Knapp
Wed Mar 25, 2020 12:11 pm
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

This is a very readable article on how the virus works:
https://www.washingtonpost.com/health/2 ... hard-kill/
by Dan Knapp
Wed Mar 25, 2020 2:20 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: EGPS-1012b with EGF-7 Electron Gun Kimball Physics
Replies: 1
Views: 1816

Re: EGPS-1012b with EGF-7 Electron Gun Kimball Physics

I may have that information; I’ll check my files. While I’m doing that, you should read the rules about joining and the
proper name requirement, and do as it states.
by Dan Knapp
Tue Mar 24, 2020 2:19 am
Forum: Vacuum Technology (& FAQs)
Topic: March issue of the bell jar - HV supply article
Replies: 5
Views: 680

Re: March issue of the bell jar - HV supply article

It works for me just clicking on the link.
by Dan Knapp
Sun Mar 22, 2020 11:58 am
Forum: Vacuum Technology (& FAQs)
Topic: March issue of the bell jar - HV supply article
Replies: 5
Views: 680

Re: March issue of the bell jar - HV supply article

Thanks for the link; this is an interesting article. My post is prompted by the section on microwave experiments. First, I think the author should have emphasized a bit more that operating a magnetron without shielding can be dangerous. I also wanted to point out that microwave plasma experiments ca...
by Dan Knapp
Sat Mar 21, 2020 11:34 pm
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

Yes Richard, I have the same question. What is your point?
by Dan Knapp
Tue Mar 17, 2020 11:50 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 100
Views: 9882

Re: Coronavirus pandemic

Denatured alcohol is OK for disinfecting surfaces, but some of the denaturants could be toxic if you use it to make hand sanitizer. It is best not to use it in hand sanitizer. Another hack that could be useful if things really get bad; I checked that my welding oxygen tank was full. I’m guessing my ...