Fine tuning the Lego spectrometer more.
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Fine tuning the Lego spectrometer more.
Using a maglite as the source eliminates the need for a separate collimating lens.
I also switched away from the very flaky variable slit made of a sliding brick that wouldn't stay in place if you looked at it wrong.
After some failed experiments with aluminum foil, I discovered that the round tree trunk Duplo brick was a tiny bit smaller than a nominal square 2x2 brick. When placed next to a square brick and locked in place with a plate on top you get a very consistent, repeatable slit that I'd ballpark as somewhere around 200 μm.
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Fine tuning the Lego spectrometer more.
Using a maglite as the source eliminates the need for a separate collimating lens.
I also switched away from the very flaky variable slit made of a sliding brick that wouldn't stay in place if you looked at it wrong.
After some failed experiments with aluminum foil, I discovered that the round tree trunk Duplo brick was a tiny bit smaller than a nominal square 2x2 brick. When placed next to a square brick and locked in place with a plate on top you get a very consistent, repeatable slit that I'd ballpark as somewhere around 200 μm.
Comparing spectra of the incandescent and white LED bulbs
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Comparing spectra of the incandescent and white LED bulbs
We've looked at absorbance spectra of a bunch of magnatiles but she doesn't quite get all the details I'm trying to explain.
The joys of trying to teach a preschooler physics lol. (Having Paisley's Corner playing in the background was also a bit of a distraction but she insisted)
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undefined aeva@mastodon.gamedev.place shared this topic
Gli ultimi otto messaggi ricevuti dalla Federazione
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Thank you to Steve Bannon for giving away the game:
Step 1: Show the people that ICE can kill anybody.
Step 2: Have ICE show up at polling stations in areas where people vote against Trump, so those neighborhoods do not go vote.
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RE: https://mastodon.social/@VeroniqueB99/116014566955532967
today’s #AltTxt #yaddyadda from Ethpanya’s Papi Sánchez:
We must speak clearly about the management of platforms such as X and the vision of figures like Elon Musk. Freedom of expression is not the right of a magnate to buy the public debate and manipulate it through algorithms that amplify confusion. Spain will move forward with legislation under which technology executives will assume direct criminal liability for serious violations on their platforms. The era of hiding behind servers is over
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When will USA civil war end?
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@inthehands Unfortunately, it seems at least too many elected dems still think it should exist.
Some have joined the 'abolish ICE' calls, but, I don't think enough reps or senators are taking it seriously.
Yet.
Some have changed stances - public pressure matters.
Especially when it's backed up by strikes, disruptive protests, etc.
So, it's not hopeless - but I don't think most of the senate, is seriously considering 'abolish' as an option. [hopefully primaries will be a slaugghter over it]
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It is a crime for the media to not constantly describe Bannon as "Epstein's best bud"
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Also, this guy makes Pontius Pilate look like a mensch
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The last day in Europe. Heading to the Berlin Brandenburg Airport.
