shoutout to people who make you feel bad for being broke as though capitalism isn’t literally designed to force masses of humans into soul-crushing, health-destroying poverty so a handful of wealthy “job creators” can maintain their troves of money and luxe champagne habits
Shark skin under a microscope via I fucking love science
Shark skin doesn’t look like normal fish skin. It’s made of microscopic diamond shaped scales with rough edges, called “denticles”. These are thought to share an evolutionary origin with teeth - indeed, they have much more in common with teeth than with scales. Like teeth, they consist of a central cavity made of pulp surrounded by dentine and enamel.
The flexible but irregular surface is impossible for barnacles and other micro-organisms to cling to, as well as decreasing drag and turbulence.
So just when you thought sharks couldn’t get any scarier, it turns out that their entire bodies are literally COVERED with teeth.
"We urgently need a paradigm shift in our concept of the purposes and practices of education. We need to leave behind the concept of education as a passport to more money and higher status in the future and replace it with a concept of education as an ongoing process that enlists the tremendous energies and creativity of schoolchildren in rebuilding and respiriting our communities and our cities now, in the present."
― Grace Lee Boggs
Happy 99th Birthday, Grace Lee Boggs..