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What was the Cursus Honorum?

The Cursus Honorum The Cursus Honorum or “course of offices” was the “greasy pole” of the Roman political world. It was designed for men of senatorial rank. It spelled out the sequential order of offices tha...
GP
31195 Views

Why is Pluto not a planet any more?

When astronomers discovered Pluto in 1930, they were excited to announce it as the 9th planet in the solar system. The problem is, back then we didn't know that Pluto is just one of many objects floating in ...
RM
Answered by Ryan M. • Science tutor
6240 Views

Where does the quadratic equation come from?

This is a quick derivation of the quadratic formula for an GCSE Maths students looking to stretch themselves a little and go for that A*! If we have a general quadratic equation: ax 2 +bx+c=0 (eq1) You will ...
RM
Answered by Ryan M. • Maths tutor
5503 Views

Why there are multiple pronounciations for one single character in Japanese?

In Japanese writing and reading system there are two different ways to read Chinese Kanji characters: 訓読み ( kun yomi ) and 音読み ( on yomi ). Historically kun yomi is used as a way to mark the vernacular words...
XW
Answered by Xing W. • Japanese tutor
2904 Views

Two cars are crash tested. Car A has a crumple zone, B doesn't. Both cars have mass 1500kg and a driver of mass 80kg and crash at 20m/s. Cars A and B take 0.8 and 0.2 seconds to stop respectively. Using this information, are crumple zones a necessity? (6)

We need to show that car A is safer than car B and this is done by showing that the force is greater on car B than car A. Start by finding the force on car A, total mass 1580kg: Force is the change of moment...
JF
Answered by Jake F. • Physics tutor
13674 Views