Sup

THIS!! Also, not demonizing sharks doesn’t mean we should demonize dolphins instead. All wild animals are dangerous, and no animal is evil.

Yeah, I see a lot of shark positivity posts on my dash these days and I really appreciate that. But I think something is being left out of the message so I’m just gonna say that:

YES, Sharks are not bloodthirsty monsters. They only do what they do because they are instinctively driven to do so.

NO, sharks are not your friends. They are not sea-puppies, gentle babies, or whatever BS anthropomorphic “cute” term you want to use to describe them.

YES, you are more likely to be killed by falling coconuts and any number of improbable circumstances than you are to be killed by a shark attack,

NO, sharks are not “harmless”. They are apex predators of their habitats and deserve to be treated with the same respect that you would give to a wild lion, bear, or wolf. JUST BECAUSE THEY ARE NOT LIKELY TO ATTACK YOU DOES NOT MEAN THAT THEY WON’T. ACCIDENTS CAN ALWAYS HAPPEN, AND A SHARK’S PATIENCE IS NOT LIMITLESS.

YES, you should take every precaution to prevent a shark from “test-biting” you.

NO, a test-bite is not just a harmless consequence of shark curiosity. A TEST-BITE CAN KILL YOU. Just because sharks generally release people after the first nip and don’t make any effort to eat them does not mean that the bite is somehow any less deadly. You will bleed out in the water if the wound is bad enough.

YES, sharks are endangered and unfairly demonised and worthy of our support.

NO, that does not mean that anthropomorphising them and spreading false information is okay. 

Please support sharks, but please, for the love of god, give them the respect they deserve when you do so. YOU ARE NOT HELPING THEM BY ENCOURAGING PEOPLE TO SWIM RIGHT INTO THEIR JAWS.

I got 38 and I love the color yellow

25% of the people have a 4th cone and see colors as they are

Given the sudden interest for the color of dresses and vision, here some of the fascinating findings we did recently.

The color nuances we see depend on the number and distribution of cones (=color receptors) in our eye. You can check this rainbow: how many color nuances do you count?

You see less than 20 color nuances: you are a dichromats, like dogs, which means you have 2 types of cones only. You are likely to wear black, beige, and blue. 25% of the population is dichromat.

You see between 20 and 32 color nuances: you are a trichromat, you have 3 types of cones (in the purple/blue, green and red area). You enjoy different colors as you can appreciate them. 50% of the population is trichromat.

You see between 33 and 39 colors: you are a tetrachromat, like bees, and have 4 types of cones (in the purple/blue, green, red plus yellow area). You are irritated by yellow, so this color will be nowhere to be found in your wardrobe. 25% of the population is tetrachromat.

You see more than 39 color nuances: come on, you are making up things! there are only 39 different colors in the test and probably only 35 are properly translated by your computer screen anyway :)

It is highly probable that people who have an additional 4th cone do not get tricked by blue/black or white/gold dresses, no matter the background light ;)

(x)

This website is a fucking parody of itself

You can support women’s rights to do whatever they want with their bodies without claiming that getting plastic surgery to adhere to the beauty standard and sex work and otherwise submitting to the patriarchy are empowering and feminist.

There's this sort of anthropomorphizing that inherently happens in language that really gets me sometimes. I'm still not over the terminology of "gravity assist," the technique where we launch satellites into the orbit of other planets so that we can build momentum via the astounding and literally astronomical strength of their gravitational forces, to "slingshot" them into the direction we need with a speed that we could never, ever, ever create ourselves. I mean, some of these slingshots easily get probes hurtling through space at tens of thousands of miles per hour. Wikipedia has a handy diagram of the Voyager 1 satellite doing such a thing.

"Gravity assist." "Slingshot." Of course, on a very basic and objective level, yes, we are taking advantage of forces generated by outside objects to specifically help in our goals. We're getting help from objects in the same way a river can power a mill. And of course we call it a "slingshot," because the motion is very similar (mentally at least; I can't be sure about the exact physics).

Plus, especially compared to the other sciences, the terminology for astrophysics is like, really straightforward. "Black hole?" Damn yeah it sure is. "Big bang?" It sure was. "Galactic cluster?" Buddy you're never gonna guess what this is. I think it's an effect of the fact that language is generally developed for life on earth and all the strange variances that happen on its surface, that applying it to something as alien and vast as space, general terms tend to suffice very well in a lot more places than, like... idk, botany.

But, like. "Gravity assist." I still can't get the notion out of my head that such language implies us receiving active help from our celestial neighbors. They come to our aid. We are working together. We are assisted. Jupiter and the other planets saw our little messengers coming from its pale blue molecular cousin, and we set up the physics just right, so that they could help us send them out to far stranger places than this, to tell us all about what they find out there.

We are assisted.

And there is no better way to illustrate my feelings on the matter than to just show you guys one of my favorite paintings, this 1973 NASA art by Rick Guidice to show the Pioneer probe doing this exact thing:

"... You, sent out beyond your recall, go to the limits of your longing. Embody me. ..."

Gravity assist.

*ghost sound*

Is this a haunting

i don’t know with how often some of my friends bring up the fact that I’m a lesbian i’m starting to think that they don’t really see me as anything besides that

so I got into grad school today with my shitty 2.8 gpa and the moral of the story is reblog those good luck posts for the love of god