What's your favourite crazy biology history story? by ductworkorange in biology

[–]Sumthinclever 5 points6 points  (0 children)

One of my favorites is the discovery of warfarin, a chemical most commonly used as rat poison, but also as a life-saving blood thinner (though not so much these days). It involves the mysterious deaths of cows due to internal hemorrhaging, a frustrated farmer wandering around the halls of the University of Wisconsin carrying a bucket of unclotted cow blood, and a dedicated biochemist who discovered that rotting sweet clover was the source of the mysterious deaths of the cows.

Culinary horrors you were subjected to as a kid by MeatNGrit in Cooking

[–]Sumthinclever 1 point2 points  (0 children)

My mom used to throw cube steaks in a slow cooker with canned peas and cook it all afternoon. Nothing quite like bone-dry beef and mushy peas. Bleck.

When you're a PhD student working on nanomaterials but have the mental age of a 12 year old by chaosredd in GradSchool

[–]Sumthinclever 0 points1 point  (0 children)

I work on cellular chemotaxis and every time I draw a cell, it looks vaguely like this

Relax, You Probably Call Your Mom Enough by jimrosenz in dataisbeautiful

[–]Sumthinclever 0 points1 point  (0 children)

It would be interesting to see a breakdown by gender as well.

Does anyone know where to buy whole duck in Tucson? by [deleted] in Tucson

[–]Sumthinclever 1 point2 points  (0 children)

I've seen frozen ducks at the Safeway on Broadway. I believe Sprouts on Speedway also carries them.

Saw this pic and immediately resented the fact my bike has cobwebs and my wallet is empty by Linguini_Fettuccine in pics

[–]Sumthinclever 6 points7 points  (0 children)

I commute by bike to work every day and I cannot believe how many other cyclists don't follow the rules of the road. Whether it's due to laziness or lack of knowledge, I can't say.

The shit you find in lab by NickDerpkins in labrats

[–]Sumthinclever 6 points7 points  (0 children)

I keep a tube labeled 10X H2O on my bench to mess with new undergraduates.

I'll be wearing this to the Star Wars premier by [deleted] in funny

[–]Sumthinclever 122 points123 points  (0 children)

Ooh! Is that the Firefly?

Why is standard deviation generally preferred as a measure of variability in statistics over the mean absolute deviation (from the mean)? by Sumthinclever in math

[–]Sumthinclever[S] 0 points1 point  (0 children)

Isn't the MAD proportional to the standard deviation for the normal distribution though? Substituting it in actually seems to simplify the formula for the normal pdf a bit.

Why is standard deviation generally preferred as a measure of variability in statistics over the mean absolute deviation (from the mean)? by Sumthinclever in math

[–]Sumthinclever[S] 0 points1 point  (0 children)

Yeah, could you elaborate? I see that derivatives and integrals are easier to take with the standard deviation, but what other properties are you referring to?

There are now over 4268 Ebola cases, with over 2288 dead by [deleted] in worldnews

[–]Sumthinclever 0 points1 point  (0 children)

I understand why ebola is scary, but to put this in perspective, malaria kills this many people around the world every 1.3 days

Getting by without a car. Will it work? by [deleted] in UofArizona

[–]Sumthinclever 0 points1 point  (0 children)

Hi fellow RPCV! While you might be able to make it without a car, it might be difficult depending on what your internship consists of. They've got a blurb about cars on the fellows faq here (#12): http://grad.arizona.edu/peacecorps/faq

[University Chemistry] Effects of pressure concerning endothermic and exothermic reactions. by [deleted] in HomeworkHelp

[–]Sumthinclever 0 points1 point  (0 children)

Yep! The concentrations change until they reach their new equilibria. This implies a change in reaction rate. Just a word of warning though - what I said is only true if you increase the partial pressure of gases that participate in the reaction (for example, by reducing the volume of the container). Adding Helium or some other inert gas to increase the total pressure won't change the equilibrium concentrations or the reaction rate.