Geoff Nunes

@AMTAteachers #iteachphysics #modelinginstruction

@AMTAteachers #chemistry #modchem

Chemistry modeling workshop in the Philadelphia area! Register now for a two-week Chemistry 1 workshop, June 17 - 28. More information is available at modelinginstruction.org/chemistry-phil… #modchem #chemistry #modelinginstruction

Physics First modeling workshop in the Philadelphia area! If you are in Southeast Pennsylvania, Delaware, or Central/Southern New Jersey, register now for a two-week Physics First workshop, June 17 - 28. modelinginstruction.org/physics-first-… #iteachphysics

@carrillophysics This year I'm trying @gregcjacobs suggestion (jacobsphysics.blogspot.com/2017/07/teachi…) which I learned about from @BelcherPhys

Does anyone have experience teaching AP physics c mechanics and e&m in one year? I’m not quite sure how to pace the two courses into one year. Any insight would be appreciated! 😁 #iteachphysics

@msruggerio Well, not quite zero from PA, because I was there!

@joel120193 @ChatPhysics They should ask "Can it be one thing? Or does it need two?" Force always involves two objects: this pushes that. It can never just involve one thing. Energy can be just one thing: this object is hot/high up/moving.

KS3 Physics teachers. How do you address the misconception that Energy and Force are the same? How do you ensure pupils can distinguish between the two? Any advice would be great! @ChatPhysics

@Prockwell4 Hmm... That circuit actually designed and built by my grad student, Denis Pelekhov, about 30 years ago. I don't think I ever knew the answer to your question. (That's the good thing about good grad students!)

@gnuphysics Ive read your paper on a Atomic force microscope for operation in high magnetic fields at millikelvin temperatures. i wish to construct the high voltage amplifier. i want to ask if the diodes in the circuit need to be rated at the same high frequency as the NTE164.

@BarnettDreyfuss starrett.com/metrology/prod…

More found antiques. The ends seem to go the wrong way for forceps, no pencil point so not a compass? Any ideas #iteachphysics?

@aronczyk Loved the show on the cheese racks, but surprised none of your experts mentioned demurrage charges... See e.g. the compressed gas business.

@nickbakerqes @kilroi22 Sorry. Written to work on a chromebook. I think that writing stuff like this to work on both a laptop and a phone would require an actual software engineer instead of a high school physics teacher.

@kilroi22 This looks so good, but doesn't seem usable on a mobile device. Any advice? I can't see the whole screen and so can't access the buttons on the left. 😕

Geoffrey Nunes created a web-based video analysis program called Sigmund. It is easy to use, very useful, and works within a browser. I used it for the 1.85 m tall Apollo astronaut jumping on the Moon and got g = 1.75 m/s/s. Try it out for yourself: noragulfa.com/sigmund/

@DoonesburyComic you forgot the blood.

Help your students understand that orbiting is falling with a Newton's Cannon simulator. noragulfa.com/cannon #iteachphysics

V5.7 of nPlot is out. Basics are the same, but now you can edit annotations, and saving a graph saves all curves plus annotation as a single file. Plus, it almost has a user manual. noragulfa.com (open to all, no ads, no tracking!) #iteachphysics

Teaching about oscillators and suddenly need my students to plot five force vs. distance graphs at once. So nPlot now supports 5 curves instead of 3. Free and available to all! noragulfa.com #iteachphysics #nPlot

@mrpauller Found notes for dropping a bare egg into a structure on the floor. If a first drop was successful, they try from the next height. Budget: it doesn't matter. Make sure they can "buy" enough to be successful if thoughtful. You are only trying to force them to make choices.

@gnuphysics I like the budget idea! Do you happen to have any documentation or ideas for suggested prices of different items?

Looking for help from #iteachphysics! My #STEM students talked me into doing the egg drop challenge for their final project. I've never done this one, so I'm looking for some help with contest rules, rubrics, and other sage advice... 🙏

In class today: Me: "1 noether = 1 kg m/s" Student: "If I use noethers in college, will they think I am crazy?" Me: "Yes." Student: "Good." #iteachphysics #noethers

@vincent_grgoire I'm leaning towards noe. We have a few other units with 3 letter symbols (think mol). Avoiding confusion with, say, newtons, seems worth the extra ink.

@gnuphysics Just start using it and people will join :p What would its symbol be 🤔?

Teaching momentum again, and still bothered by no named unit. There are 19 SI units named for men, none for women. It is time for the noether! Equal to 1 kg m/s and named in honor of Emy Noether and her theorem. Hey #iteachphysics, how do we make this happen?

@maalmeida85 Or maybe abbreviate as a noe. 3.6 noe is less of a mouthful, and at the same time offers the possibility of amusing confusion.