Prosthaphaeresis (from the Greek προσθαφαίρεσις) was an algorithm used in the late 16th century and early 17th century for approximate multiplication and division using formulas from trigonometry. For the 25 years preceding the invention of the logarithm in 1614, it was the only known generally applicable way of approximating products quickly. Its name comes from the Greek prosthesis (πρόσθεσις) and aphaeresis (ἀφαίρεσις), meaning addition and subtraction, two steps in the process. (Wikipedia).
From playlist everything
Y10 Review Questions (Right-Angled Triangle Trigonometry)
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From playlist Trigonometry
NEW Bedtime Procrastination Research (my paper!) #shorts
Link to the paper: https://authors.elsevier.com/a/1g3qp3tB5QthtD Questions?! Ask away! I am a bedtime procrastination scholar, thank you for listening. #sleep #procrastination #research #psychology
From playlist My Research
This Procrastination Book Doesn’t Exist #shorts
Longer video on Procrastination: 👀 https://youtu.be/v7RX_5eGNJM And subscribe to BrainCraft for more videos!
From playlist BrainCraft #shorts
Prokaryotic Cells: The Simplest Kind of Life
We've established that the basic unit of life is the cell, and that the simplest forms of life are just one cell. The earliest unicellular organisms were prokaryotic, and there are many prokaryotic organisms still around today, including all bacteria. So let's go over the features of the p
From playlist Biology/Genetics
Prosopagnosia, Aphantasia and Super-Recognition
In this lecture, we think about prosopagnosia, aphantasia and super-recognition, focusing in particular on: (i) defining prosopagnosia as the specific deficit of human face processing, without loss in any other visual processing ability; (ii) differentiating acquired prosopagnosia and deve
From playlist Psychology
What Happens When You Procrastinate Too Much
There's a reason why people are such bad procrastinators. It's easy: Procrastinating feels great. But it's not so great for your brain since it pits two of your brain's heavy hitters, your limbic system, and your prefrontal cortex into a literal head-to-head match. -----------------------
From playlist Health Science
Robotics is a team sport, bringing together people with varied and sometimes surprising skill sets—from marine helicopter mechanics and machine learning PhDs, to puppeteers and chocolate-makers. Meet some of the X team who are teaching robots how to learn, and hear why diverse perspective
From playlist Robotics
How can we multiply numbers with trigonometry? - Week 6 - Lecture 12 - Mooculus
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From playlist Ohio State: Jim Fowler's Calculus One Lectures | CosmoLearning Mathematics
How To Permanently Stop Procrastinating
How To Stop Procrastination What do you want to do that you keep procrastinating? https://goo.gl/X1QoIA Maybe you’re even putting it off right now by watching this video. Keep it in mind, because by the end of this video - my goal is to get you doing that thing. Because if you’re like m
From playlist Fan Q&A
How can Newton's method help me to divide quickly? - Week 9 - Lecture 8 - Mooculus
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From playlist Ohio State: Jim Fowler's Calculus One Lectures | CosmoLearning Mathematics