berkeman's latest activity
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berkeman replied to the thread Optical Arduino sensors for detecting purity of streetdrugs on the spot.No. US $20.000 = $20. Cheap. :smile: -
berkeman replied to the thread Optical Arduino sensors for detecting purity of streetdrugs on the spot.Is that a US decimal point or a European comma/thousands separator?
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berkeman replied to the thread Collection of Lame Jokes.
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berkeman reacted to sbrothy's post in the thread Optical Arduino sensors for detecting purity of streetdrugs on the spot with
Like.
Not Arduino specifically but promising nonetheless (Journal of Chemical Education): Fabricating a Low-Cost Raman Spectrometer to... -
Just posted this pic I took, along with with the comment "If this is how they act in a parking lot, imagine how they'll act on your...
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berkeman reacted to MidgetDwarf's post in the thread Intro Math Hassani's books on Mathematical Physics/Methods with Like.
Geez. The hardcover is pricey. BUt it is quality. A friend of myne owns a copy and I skimmed through it. Lots of cool stuff. Will buy a...
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berkeman replied to the thread Share Animal Pictures: For Animal Lovers.
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berkeman reacted to Astronuc's post in the thread Google DeepMind, AI/ML and ALPHA-fold with
Informative.
I came across a video regarding the use of AI/ML to work through complex datasets to determine complicated protein structures. It is a... -
berkeman reacted to Borek's post in the thread Optical Arduino sensors for detecting purity of streetdrugs on the spot with Like.
OP, here: (link removed) This is seriously misleading as written. Mass spectroscopy is a technique that involves evaporating sample...
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berkeman reacted to PeroK's post in the thread How can we teach students the difference between sequences and series? with Like.
If a student struggles with this, then mathematics isn't for them. There are a lot harder concepts than this.
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berkeman replied to the thread How can we teach students the difference between sequences and series?.Um, recognizing the different punctuation?
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berkeman reacted to Dale's post in the thread I Synchronizing clocks in an inertial frame if light is anisotropic with Like.
Indeed, to be clear post a spacetime diagram with each event labeled and each signal indicated. And perform your calculations using one...
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berkeman replied to the thread Optical Arduino sensors for detecting purity of streetdrugs on the spot.Which "you"? Also, both are mentioned in the reply that I posted. They are different modalities and need different hardware, yes.
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