Blood clotting is a complex but vital process that stems blood loss when a vessel is injured. Clotting begins nearly instantly after injury when platelets form a plug at the site of damage. Simultaneously, a cascade is initiated where proteins from the blood plasma form strands of fibrin that interlink and strengthen the clot. Seen here is a fibrin clot (green) forming among blood vessel cells (orange with nuclei in blue).
Image by Jakob Zbaeren.
do you guys realize we can change our lives any time we want like you can just go ahead and delete your blog, stop eating meat, shave your head, start running, tell that person you hate why you hate them so much, confess your love to someone and kiss them unexpectedly like why don’t we do that
“Stories go on. They don’t end on the last page, any more than they begin on the first page.”_Inkspell
“Because you can talk to him, you know. At any time.” - Paranoid Park
“THE RIVER WAS DEAD and the lake already dying when the monster had come down the dried-up watercourse and turned onto the desolate mud-flats.”
“Executing the HLT instruction will stop program execution.”
“They entered the room almost at the same moment that the elder came in from his bedroom.” -The Brothers Karamazov
“It turns out that the disease gives increased resistance to malaria which has had a high survival value for heterozygotes, particularly in Africa.”
I never understand people who judge others for their taste in music
like it’s literally “you like this combination of sounds and I like this combination of sounds, but I believe my combination of sounds are superior to your combination of sounds based on totally arbitrary criteria and I will now judge you for that”
Well someone’s taste in music tends to reflect their personality and life attitudes to some extent but you still probably shouldn’t hate anyone for it. Also a lot of the time when people talk about someone having bad taste in music they really mean having a bad taste in lyrics.
“this combination of sounds that you enjoy as opposed to that combination of sounds totally reflects your personality and life attitudes”
Come on now Hannah, that person wasn’t being a music snob. They were just making the- quite reasonable- point that the music you like can, although not always, reflect upon your personality to a certain extent, which can sometimes be true. Probably not to the extent that their post seemed to imply, but it can still sometimes be true, particularly for styles of music that are also tied up in broader styles of self-expression such as punk and metal and rap. Obviously what music you like doesn’t say everything about you but it can sometimes give an indication, particularly when that music is a big part of your life. Also, even if you disagree with that (which you can, it’s not a very solid argument), their post was not in any way judging people for liking one type of music over another. They specifically said you shouldn’t do that. I suppose you could say that talking about liking ‘bad lyrics’ is snobbish, although 1) taste in lyrics is a subtly different subject to taste in music as a whole and 2) they weren’t necessarily saying that was their opinion, just that it’s what they believe most people mean in this context.
Sylvia Todd is the amazing girl inventor behind Sylvia’s Super Awesome Mini Maker Show; a show with only 20 videos and over 1.5 million views. She teaches Do-It-Yourself science projects for kids such as how to make Squishy Circuits and how to build a shield out of LED’s. Her latest…
Aw, she’s adorable. And so smart, too. I now feel like I was a very inadequate 11 year old… why wasn’t I an adorable child video-making science prodigy? Totally blaming it on the fact that youtube didn’t exist when I was 11.. yep, totally and only for that reason…
I have three more exams to go after this weekend but I’m just really struggling to remain motivated and maintain the level of revision I need to do. I just want it all to be over now… I was in the exam this morning looking at the essay question I had to write and for a brief moment I was just like… nope. Don’t want to. I really don’t understand why they arrange all the exams so close together like this, it’s almost as if they want everyone to do terribly. Apparently my department has the highest rates of people going to the campus medical centre for depression and anxiety and other mental health issues and, you know, if they pull stuff like this, I can totally see that.
The second heaviest bird in the world, the cassowary is a territorial creature that can be quite aggressive against any other birds it encounters. It will make a brief exception for mating, though as soon as the eggs are laid, the mating pair are quick to separate again. It is the male however who stays behind, watching over the emerald green eggs for several months, even though they might not all be his.
Wow, Alexander Vidal’s illustration of a cassowary almost makes the gut-splaying, claw-footed menace look cute.
Is that the bird from Up.
colossaltitan asked: honestly i have absolutely no idea how it gets that big because the surface area volume ratio is ridiculous. there's another single celled algae that's 10 cm wide but its shape is kind of like mitochondrial cristae so it has plenty of surface area? i was planning on asking one of the bio professors over here
Yeah, that’s what I thought too, I could understand if it had a cristae-like shape to increase the surface area but one giant sphere just seems like it wouldn’t work… perhaps it has loads of microscopic microvilli on its surface that we can’t see in the picture which increases the surface area? If you find out, I’d be interested to know. :D
Meet Ventricaria ventricosa. It’s algae. It’s found throughout the ocean, especially in tropical regions. Grows out somewhere between 1.5 and 2 inches in diameter.
this is terrifying because it’s a single-celled organism. that green blob is one cell. Just one cell. What on earth. like
big organelles inside? no. just a TON of them. tons of microscopic organelles floating around inside one of the biggest single-celled organisms in existence. I want to poke it with a stick
How does it manage to get enough oxygen? Its surface area:volume ratio can’t be very high…