Gold Updated +Created
Chinese punctuation Updated +Created
Science fiction film Updated +Created
War film Updated +Created
Argon Updated +Created
Real-time polymerase chain reaction Updated +Created
Also known as: Quantitative PCR (qPCR).
Like PCR, but the amplification machine measures the concentration of DNA at each step.
This describes one possible concentration detection method with fluorescent molecules that only become fluorescent when the DNA is double stranded (SYBR Green)
Video 1.
Polymerase Chain Reaction (PCR) - Quantitative PCR (qPCR) by Applied Biological Materials (2016)
Source.
This allows you to predict the exact initial concentration by extrapolating the exponential curve backwards.
TODO: vs non-real-time PCR. Why can't you just divide by 2 for every heating step to reach back the original concentration? Likely the reaction reach saturation at an unknown step.
TODO: vs non-real-time PCR in medical diagnostics: do you really need to know concentration for diagnostics? Isn't it enough to know if the virus is present or not?
ProtonMail Updated +Created
One of the very few encrypted emails... beauty. And they also have an encrypted password manager!!! Using this is a must as of 2023 basically. The only missing thing now is to find a fully open source alternative!!!
Sure, search capabilities have to be somewhat limited: proton.me/blog/engineering-message-content-search
techcrunch.com/2021/09/06/protonmail-logged-ip-address-of-french-activist-after-order-by-swiss-authorities/ you've fucking got to use Tor Browser with it if you want your IP to remain hidden, learn that...
Are daily notifications without a recovery email possible? www.reddit.com/r/ProtonMail/comments/yjau8f/allow_daily_email_notifications_without_having_a/ OK, they do work actually.
The lack of Gmail dot trick is tragic however, and you have to pay for multiple aliases. But you can however create separate inboxes with the same cell phone verification however.
Chinese television drama Updated +Created
Human genome sequencing project Updated +Created
Chromosomal crossover Updated +Created
Radio receiver Updated +Created
As well put by Wikipedia, a radio receiver has to perform three functions on the signal from the antenna:
  • filtering, so you can tune the station you care about. This filters based on the frequency of the carrier wave you want. I.e. you use a bandpass filter.
  • amplification: otherwise you won't be able to hear anything if the emitter is too far away
  • demodulation: this means decoding the signal based on whatever way it was encoded, notably e.g. AM/FM
Raspberry Pi OS Updated +Created
Enable SSH on boot:
  • sudo touch /boot/ssh
Niobium Updated +Created
WikiWikiWeb Updated +Created
The venerable first wiki.
The pre-Eternal September feeling is palpable.
People could freely comment their thoughts and sign below, making it much closer to what Ciro Santilli wants OurBigBook.com to be. But with upvotes ;-)
Nothing can better encapsulate the nostalgia of early day Internet. Genius at times, banal at others, you will be forever in our hearts!
Factorio Updated +Created
Pseudocode Updated +Created
International System of Units Updated +Created
The key is to define only the minimum number of measures: if you define more definitions become over constrained and could be inconsistent.
Learning the modern SI is also a great way to learn some interesting Physics.
Imperial units Updated +Created
Tic-tac-toe Updated +Created

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