How Old Is Planet Earth?

The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud, which began to spin and flatten out into a circumstellar disc from which the planets were born. Over the next 10–20 million years the primordial Earth was formed with its atmosphere and oceans

How Do Truth Serums Work?

Sodium amytal (amobarbital), pentothal sodium (thiopental), and seconal (secobarbital) are a collective class of barbiturate that produce a range of depressant effects from mild sedation to deep anesthesia, and are used as truth serums. Barbiturates act on higher brain functions by binding to GABA-A protein receptors which convey signals around the

What Was Che Guevara Looking At In The Iconic Photograph?

Guerrillero Heroico (Heroic Guerrilla Fighter), the iconic photograph of Marxist revolutionary Che Guevara, has been reproduced countless times and adorns the walls of student accommodation worldwide, but what lies behind his gaze? On 5th March 1960 in Havana, Che Guevara attended a memorial service for victims of the ship La Coubre

Why Do We Celebrate May Day?

May Day is a public holiday on or around the first of May. It is primarily celebrated as the first day of summer in countries with ancient European pagan heritage, but is also the date of International Workers' Day which recognises the Chicago Haymarket Affair. Traditional May Day festivities coincide with