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astropheminism:

scienceyoucanlove:

Great women of science 

Rosalind Franklin (1920-1958) - British biophysicist and X-ray crystallographer who made critical contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal, and graphite. 

Marie Skłodowska-Curie (1867-1934) - Polish and naturalized-French physicist and chemist, famous for her pioneering research on radioactivity. 

Chien-Shiung Wu (1912-1997) - Chinese American physicist with expertise in the techniques of experimental physics and radioactivity. 

Émilie du Châtelet (1706-1749) - French mathematician, physicist, and author during the Age of Enlightenment.

Mae Jemison (1956) - American physician and NASA astronaut. She became the first African American woman to travel in space when she went into orbit aboard the Space Shuttle Endeavour on September 12, 1992.

Vera Rubin (1928) - American astronomer who pioneered work on galaxy rotation rates. She is famous for uncovering the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves. 

Ada Lovelace (1815-1852) - English mathematician and writer chiefly known for her work on Charles Babbage’s early mechanical general-purpose computer, the Analytical Engine. Her notes on the engine include what is recognised as the first algorithm intended to be processed by a machine. Because of this, she is often described as the world’s first computer programmer.

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And my personal favorite, Cecilia Payne-Gaposchkin, who discovered the abundance of hydrogen in stars.

spring-of-mathematics:

Chaos Theory and Starling Flocks in Nature.

Chaos theory have many applications in meteorology, sociology, physics, engineering,etc…..Also, Chaotic behavior can also be observed in many natural systems. In a scientific context, the word chaos has a slightly different meaning than it does in its general usage as a state of confusion, lacking any order. Chaos, with reference to chaos theory, refers to an apparent lack of order in a system that nevertheless obeys particular laws or rules. Chaotic behavior can be studied through analysis of a chaotic mathematical model, or through analytical techniques such as recurrence plots and Poincaré maps.

Starling flocks in Nature: When the starlings changes direction, speed, each of the other birds in the flock responds to the change and they do so nearly simultaneously regardless of the size of the flock.  In essence, information moves across the flock very quickly and with nearly no degradation. The researchers describe it as a high signal-to-noise ratio. The starlings are capable of extraordinary collective responses. These masses of birds move so synchronously, swiftly, and gracefully. (Shared from the article by Andrea Alfano)
The flock’ s movement is based on evasive maneuvers. There is safety in numbers, so the individual starlings do not scatter, but rather are able to move as an intelligent cloud, fainting away from a diving raptor, thousands of birds changing direction almost simultaneously and move in union. See more at: The incredible science behind starling murmurations by Jaymi Heimbuch & A Darwinian Dance by Grainger Hunt.


Image & Source: I shared at Fig.1:Logistic map  - Fig.2: Wildlife by Alan MacKenzie Photography - Fig.3: Murmurations.

Fig.4: Bifurcation diagram of the logistic map. Logistic systems bifurcate as their rates of change increase. - Fig.5: A Darwinian Dance - Fig.6: Starling Murmuration by midlander1231 on Flickr.- Fig.7: Starling, United Kingdom by John O Neill.

rodimiss asked:

as an east coast kid i've only heard "ochem"

nonlinearfluctuations:

femscinerd:

adventuresinchemistry:

So far we have accumulated enough anecdotal evidence to suggest that no one on the west coast, east coast, or the Midwest says orgo.

Who are you mysterious orgo people?!?!? Who are you???

attn science side of tumblr we are doing an extremely important study on who actually says orgo

I say orgo and that is what I heard in my undergrad institution in Boston. (But I am a physicist so maybe the chem students said ochem?). Math person in my office who is from Mexico said he has hear ochem or carbonchem. Other physics person in my office has heard both ochem and orgo but she said that ochem is more common where she went to school (Chicago).

I did undergrad in upstate NY. Orgo was commonly used, and that’s what I use.

Transgenders?

I have a question for anyone in the trans community. Is transgenders an appropriate word for transgender people? How about people in the medical community- is that what you’re using?

I’m reading the July 11 Science special section on HIV/AIDS prevention, and they keep listing high-risk groups like this: “men who have sex with men (MSM), transgenders, and sex workers.” I’m pretty sure transgender is an adjective, so I’m confused that a well-known scientific journal would do this repeatedly unless it’s common usage in medicine.

Update: I found that the WHO uses “transgender persons”, so the idea that it is technical medical usage is right out. Letter to Science it is.

Educating a Friend

  • Me:

    So, let's say that you're at school and you see a guy you know. I mean, you guys talk every once in a while and he's pretty cool, but you're not like friends or anything. You just talk to him every once in a while.

  • Guy Friend:

    What's his name?

  • Me:

    I don't know. Frank?

  • Guy Friend:

    No.

  • Me:

    Okay, fine. His name is Will. Okay?

  • Guy Friend:

    I don't think it really suits him, but okay.

  • Me:

    ...So anyway, you're at school during lunchtime and you see Will. So, you notice Will's not eating anything. That's when you realize that Will has no lunch, no money for lunch, and no way of getting either. He's just sitting there like he normally would. He's not acting any differently and he's not asking anyone for anything. Not money, not a fry, not even a salt packet, but you know he's gotta be hungry. So, what do you do?

  • Guy Friend:

    Do I have any money?

  • Me:

    Yeah. You have enough for you and another meal.

  • Guy Friend:

    Duh, I buy him lunch.

  • Me:

    Okay, cool. So, like you said, you buy him lunch. You buy your lunch and you buy his lunch and you go over and hand it to him. And, he says, "Wow. You know, that's really nice of you, but I wasn't gonna ask anyone for lunch. I was probably just gonna wait until I got home to eat." And, then you say--

  • Guy Friend:

    Nah, it's cool.

  • Me:

    Exactly. You say, "Nah, it's cool. I'm just being nice. It's a gift." And, Will says, "You know, that's awesome. You're really nice, bro." And, after that, you guys start hanging out. You guys are like really good buds. You are always hanging out and laughing and just having a good time. So, you guys are friends for a few months, and it's tons of fun. Then, one day, you go up to Will and you say, "Hey, Will, you know, I've been thinking, and I kinda want that five bucks."

  • Guy Friend:

    What five bucks?

  • Me:

    Hold on. I'm getting there. So, Will says, "What five bucks?" To which, you reply, "Well, we've been hanging out for a long time and it's been really fun, but like, I've done a lot of really nice things for you. Like, I'm always nice to you and I always listen and do things you wanna do, so I was thinking that because I've been so nice, you should pay me back that five bucks I spent to get your lunch right before we started really hanging out."

  • Guy Friend:

    What? Why would I--

  • Me:

    I'm not done yet. So, then Will looks kinda hurt and he says, "But I thought you were just being nice. I thought that was just a gift." So, you say, "Whether or not it was a gift, don't you think you kinda owe me that five bucks since I've been so nice to you?" And, Will says, "No. I don't think I owe you that!" And you get mad, so you say, "Well, I think that you do, so I think you're being really shitty and stuck up about this and I feel like I've been completely wronged."

  • Guy Friend:

    Oh, my God. That's so fucked up of me. I would never do that to Will. Will was nice. We were buds. That's way screwed.

  • Me:

    I know, right? Hey, just wondering, have you ever heard of this fictional place called "The Friendzone?"

  • Guy Friend:

    Well, yeah, but...

  • Guy Friend:

    ...

  • Guy Friend:

    ...

  • Guy Friend:

    oh

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