That moment that ketchup transitions from a solid, high up in the ketchup bottle, to a liquid that squirts all over your fries – that moment is a big physics moment. Why? Ketchup is a non-Newtonian fluid (like oobleck, peanut butter, custard, toothpaste, paint, blood, or quicksand) that can switch between a solid and liquid state, and ketchup is non-Newtonian in two different ways…
In that transition moment, ketchup may be responding to a strong, quick force, suddenly making it thinner, or if you’re patient and apply just a wee bit of force, it may start flowing given some time and gravity. Grab a ketchup bottle and get the details in this TED Ed lesson by George Zaidan, with animation by TOGETHER.
Some interesting info: This is very reminiscent of the Baby X experiments, in which it was discovered that people reacted differently to a baby’s behavior depending on whether or not they believed the baby to be male or female. People were asked to watch a video of a baby reacting to a startling image (a Jack-in-the-box popping up), and describe the baby’s emotional state. When people believed the baby to be female, they described the baby as being scared and upset; when they thought the baby was male, they perceived the baby to be angry. This was very telling, as it showed that literally identical behavior could be construed differently based on the perceived gender of the subject.
Now imagine a lifetime of gender specific socialization- male anger is par for the course while the same emotion in a woman is personal weakness. Ha oh sorry don’t have to imagine THAT’S REALITY
LOWERCASE LETTERS ARE FOR THE LOWER CLASS
and here we have a capitalist
Did you just.
let us all take a moment to appreciate that all of human history and human language and the universe itself aligned to make this joke possible