Apparently humans are more ancestrally related to echinoderms (starfish, sea urchins, sea cucumbers, etcetera) than they are arthropods (insects, crustaceans, arachnids…) and mollusks (squid, octopi, cuttlefish…).
You’d think because arthropods and mollusks have heads, faces, brains and the former an exoskeleton (we have an endoskeleton), they’d be more ancestrally related to vertebrates than headless echinoderms, but nope.
So heads, faces and brains independently evolved a few times, weird.
Men can piss standing up straight, and with some trouble, so can women.
A Roman woman recently crossed to the middle of the street as I approached, lifted her long skirt and just let it rip onto the cobblestones.
I felt like I was in the exorcist.
Trees suck up the water from the ground by negative pressure, distributed throughout the near molecular scaled vessels in the leafs.
Meaning they can suck much harder in summer, so the growing of leafs is like a quasi self-perpetuating mechanism. Which is maybe why trees grow fruits, excess of negative pressure.
So because they have leaves, they are able to suck up water to such great heights as to grow leafs there. A tree 100 m tall must generate 10 atmospheres of negative pressure to get the water to the leafs, which are coming into being in order to embody the work of bringing up the resources for their coming into being.
Negative pressure is, roughly speaking, the tendency of water to stick to other substances rather than to itself. To witness this principle in action, now watch a Canadian wring out a washcloth in space. youtube.com/watch?v=o8TssbmY-GM
The Theory of Relativity predated Einstein.
The basic ideas of the theory pre-existed and had a different name.
All of Einstein’s children wound up in mental institutions or disappeared - one reportedly placed in an orphanage.
His first wife did all the complex math, and was not accredited - she was a Serbian woman, with a limp.