I dunno if this counts, but my 10th grade science teacher fits this trope. She was 45, but she looked about 30. And my God, it didn't help matters when we got to the 'human sexual relations' part of the class.

I'm taking a science faculty in my college. Does they count as hot scientist when this troper's beautiful friends get in the lab (means we must use lab coat inside the lab)?

Fictional example: this troper thinks that for being his age, {{Mad Scientist}} Vexen of Kingom Hearts: Chain of Memories was very, very good looking.

This troper's first rule of dating: go for the physicist. It's usually worth it.

One of the chemistry teachers at this troper's school fits this trope: for the first week after she arrived all the boys were drooling over her.

This tropers science teacher fits this trope perfectly and is a fiery redhead to boot. All the guys want to know about her love life and this troper is female and thinks she's hot.

This troper's favorite professor looks very young and pretty for her age (she's 53, but doesn't look a day over 39!) All the girls look up to her, not only because she's cool, but because of her looks. We all hope to be like her someday! ^_^

This troper's labful of astronomers has some nice people, but our "dress code" of grad student shabby/new parent hurried is unlikely to strike many people as "hot".

Despite age difference, I am attracted to my science teacher.

This troper's biology professor is not only super-cool, but she's OlderThanTheyLook, and always looks really good, even without a lot of makeup or designer clothes.

This troper has a crush on a calm, cool, curly haired brunette scientist with striking blue eyes. I imagine the students in her male-dominated classes must fight over who gets to sit next to her.

Halfway subverted by this troper: I'm constantly told (by people other than my parents) that I'm gorgeous and should be a model...but most of the time I'm so into my geek/scientist trains of thought that I'm too lazy to put any effort into my appearance, making myself look frumpy.

This troper thought his science teacher in 7th grade was the hottest Japanese woman ever. He still does.

There's a chemistry teacher in this troper's high school who he thinks is ridiculously attractive. It didn't help that she was ridiculously nice to only him when she taught him, and let him get away with a lot of stuff. (Not that kinda stuff, playing video games and texting.)

This troper's college chemistry teacher had half the girls in the class crushing on him. Given the school demographics, the other half of the girls were probably lesbians.

I would be less inclined to say they are quite a few. Many guys would be truly stunned to meet a lovely 26-year-old blue-eyed blonde with creamy smooth skin, the BondGirl type,a bit ''rounder'' than emaciated supermodels... and find out she was a fresh-out-of-university ''nuclear engineer''.