Got Two Mongolian Friends Here At Work If You Want Me To Ask Them? :)

Glad to see your back. Love your work. As always, keep up the good job! And btw, nice covergirl photo ;)

Rough draft of a sculpture illustrating the electric field lines between two equal and opposite charges.

(Hi! I’m still alive, sorry for ghostin ya tumblr. I stopped posting because my reclusive tendencies have gotten really out of control over the past year or so, but I’m trying to take little baby steps to quittin my bullshit so bear with me! Still makin math art like crazy, so I thought I’d start with sendin u this lil ditty I whipped up a couple weeks ago. Plenty more where this came from, I promise!)

Wow, this story is my hope for humanity! Keep it up and keep doing what you do, Mathed-potatoes! :)

People never cease to amaze me in every way. 

Today, we had an emergency response drill. This involves flashing lights and loud sounds. I have a neurological disorder that makes this type of even very uncomfortable. 

The hour before this drill, I had an incredibly disappointing interaction with one of my work supervisors. My reaction was much stronger than I might have anticipated on a theoretical level, and I was still reeling when the drill started… so I didn’t take steps to avoid the sensory barrage. The loud noises happen first, and I was already starting to spiral the drain. 

And then…

And then one of my students caught my attention. She told me the lights were about to start flashing, and asked if I needed to go outside. I was so far gone I couldn’t really process how to do the ‘get outside’ thing. Like, I couldn’t find ‘outside.’ So she sherpa’d me to safety, just in time to avoid the flashy lights that would have triggered a full meltdown. 

So, here’s the thing: I have mentioned my disorder to her once, in passing, by name only. She literally remembered that I had a condition, and took steps to know what emergency protocol I might need in certain situations. I thanked her profusely, and asked how she had learned to be so sensitive to stuff like that. She told me she has a younger sister with a disability, and so she understands how significant the timely attention of a knowledgeable ally can be. 

It is significant. It makes a world of difference. 

She saved the day for me. 

She kept me from having to leave in the middle of the day, from having to cancel my afternoon discussions. 

And, at that particular moment, when I was still shocked by an instance of the human capacity to harm, she reminded that their capacity to help, to be compassionate, to care about one another, is far greater still.

Wow, I just love when science is put to practical use!

Pun on ‘Doppler Shift’.

I love it when people take up Physics concepts and incorporate them into the realms of everyday life. 

The Doppler effect (or Doppler shift) is the change in frequency of a wave for an observer moving relative to its source. 

It is commonly observed in sound. When a car is approaching you, the pitch (frequency) of the car increases and when it recedes, the pitch decreases. right? This is the Doppler Shift in action. 

Or to put it in TBBT verbatim - “ Neeeeoooowwwww!”

The Doppler Shift works with light exactly the same as with sound! Just as sound seems higher or lower in pitch as the object is moving towards or away from you, light appears higher in frequency (color) when the object is moving towards you, and lower in frequency/color when moving away from you. The order of colors/frequency of light that we can see is: 

Lower Frequency               Higher Frequency

red - orange - yellow  - green - blue - violet

So a far away object moving quickly away from you would appear more reddish than if it were standing still. The same object moving quickly towards you would appear more bluish than if it were standing still.

PC : Dean Johnson

Hey all. Here in Sweden some of our preschools teaches signlanguage. It’s a really good compliment and the kids rock it like they never did anything else. I know Swedsh signlanguage because of my sisters deaf kid. Its a wonderfful way to communicate. Love the bodylanguage that comes with it! Take care!  

Reblog if you think sign language should be taught as a language in schools.

Väldigt vackert när det är Mondrian målning som reflekteras om. Wow! Jag undrar hur en “grid” av rutor 1x1 skulle se ut efter den blivit omgjord.  Dags att uppgradera mina programeringsskills och göra egna program.. :)

Edit: Malin hade gjort ett fint program redan för detta. MEN, att rita raka stäck med mus är sådär halv lätt.. Resultat : 

When reflecting a painting in a circle, pen strokes close to the centre of the circle become thicker. Reflecting a pixel-based image would enlarge and distort some pixels.  A painting built of strokes, like a Mondrian-painting, is better suited for circle inversion.

 Paint Circle-Inverted Mondrian:

http://www.malinc.se/m/InvertedMondrian.php

"Oh captain, my captain."

Just the ruler missing. Love to draw with those tools!

This slide is really something! :)

Video of my talk last week at ICERM, where I discussed a bit of my process for making GIFs. You can also access my slides here.

Hahaha, Words like “Grönsakspanik”, “Terrorlugn” and “Gerillabroderi”. WTF is this. :D Im from Sweden and have never heard of those words.. :D

Swedish tabloids have a habit of inventing new compound words which catch your attention and carry a lot of information, but which mostly are just ridiculous, especially out of context. I will translate a few:

pirogtumult - pie riot snösmocka - snow punch skottningshysteri - snow-shoveling mania slipsvåld - tie violence gravidbråkar - pregnant-quarreling älgdrama - moose drama psykchockskrigsattacken - the psychological shock war attack (in the context of ice hockey) bajsplågan - the poop torment vrålonani - roar wank dödskorvar - death sausages

[Source]

(submitted by @ordlista )

Wow, huvudmaskinen får jobba hårt när jag tittar på dessa. Kommer genast till funderingen över hur många varv den innesta behöver snurra för att alla skall vara tillbaka på start igen. Häftigt, ser skevt ut när varannan form är svart som bakgrunden. :) Riktigt bra jobbat med sidan och de du skapat i Geogebra!!

Distorted epicycloids and hypocycloids rolling inside other distorted epicycloids and hypocycloids.

Interactive versions with distorted and non-distorted versions, and the math behind it: http://www.malinc.se/m/RollingHypocycloids.php