Jeff Yap

Physics and Chemistry Teacher. I do all my own stunts. he/him

[Jeff Yap @jeffyapscience]

Mould effect. #iteachphysics

[Jeff Yap @jeffyapscience]

@pchemstud Don’t throw water on it. Don’t use a spice blender on aluminum foil trying to make aluminum powder.

[Jeff Yap @jeffyapscience]

@BarnettDreyfuss I put up with that shenanigans in my room for one day before resorting to the “physical lockout” tactic: I leave one of them unplugged all the time.

[Jeff Yap @jeffyapscience]

@RyTriGuy @Andrestrujado @johnmdudley Update: do NOT buy a high pressure sodium bulb with standard light bulb threads and screw it into a standard bulb socket. They require a ballast to work.

[Jeff Yap @jeffyapscience]

@RyTriGuy @Andrestrujado @johnmdudley Anyone tried a high pressure sodium lamp? ($11) Wider range of wavelengths, but considering trying a filter or maybe a prism to separate. And metal halide bulbs ($25) have sharper wavelength spikes, but also have other colors, so filters might work better on that. Suggestions?

[Jeff Yap @jeffyapscience]

#iteachphysics

[Secret Headteacher @secretHT1]

When I taught, I had two rules in my classroom.

1) Do your best
2) Don’t stop anyone else from learning.

Obviously, unpacking them leads to loads more - but it was so simple for the children and very easy to remind them of if they needed it.

[Mineral Cup #MinCup @MineralCup]

Wait, what's that? A list of all the minerals competing in #MinCup23? YES! https://t.co/WvT5r7YWtA

Bracket released as soon as we finish checking for typos & accidental repeated matchups.

Voting starts September 1 on our website.

[Jeff Yap @jeffyapscience]

@MrJoeMilliano It took me an hour to figure out how to make a shortcut, but worth it to me.

[@msmagaryphysics.bsky.social @MsMagaryPhysics]

Do you want 1 minute/day of physics history for your students? If your answer is yes, you might like the year's worth of slides I just finished. https://t.co/6CQdILDuMM Comments are turned on if you want to leave suggestions/comments. #ITeachPhysics

[Jeff Yap @jeffyapscience]

@shskaercher I’m still here and many other physics and math Ts stuck around. I spent a large portion of the early days blocking, muting, and “not interested in”-ing stuff, and my feed is pretty close to before. I’m missing the people who left but they scattered to multiple other places.

[Jeff Yap @jeffyapscience]

#iteachphysics if you hear an airplane, and point at the direction that the sound from a plane is coming from, it comes from behind the plane. Without studying (much) airplane identification, can you calculate/estimate height, velocity, size, or other data based on this?

[Jeff Yap @jeffyapscience]

@aserkin America’s Test Kitchen YouTube channel just (11 days) released a video about the uses of powdered acids in cooking.

[Jeff Yap @jeffyapscience]

@aserkin Mushrooms are super versatile in different applications.

Give them the acid challenge: Citric acid, different types of vinegar, ascorbic acid, or any combo/choice and they have to use it in the food prep and explain why/how it works.

[Jeff Yap @jeffyapscience]

@Hookean1 And if you really wanna cook your noodle: if you do find the three phase diagram for water, zoom out and see the other (>3) phases.

[Jeff Yap @jeffyapscience]

@Hookean1 It is a topic for AP Chem. I love this next fact, because it will either be obvious or mind blowing: you can tell this diagram is not water because the solid-liquid interface has a positive slope, not a negative one.

[Jeff Yap @jeffyapscience]

@IBchemmilam The walls are blast resistant, and an interior room would be a concern for a high O2 environment. The walls of the vessel are carbon steel (in most countries) and need to stay warm(ish) to avoid cracking.

[Jeff Yap @jeffyapscience]

@IBchemmilam Info per a cryo gas expert: the tanks are well enough insulated that sunlight won’t affect, and not worth the cost of building an overhang or finding the shady side of building. Also: those silver things are heat exchangers to turn the LOX into gas and work better in sunlight /1

[Jeff Yap @jeffyapscience]

@APchemisMe Same here!