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How did a London physician stop a cholera outbreak that killed more than 500 people in ten days by mapping deaths on a Soho street grid and removing the handle from a single water pump in 1854?
In September 1854, London physician John Snow ended a cholera outbreak that killed 616 people in ten days by mapping every death on a Soho street grid, tracing the cluster to a single contaminated water pump on Broad Street, and having its handle removed — founding modern epidemiology in the process.
Astronauts returning from six-month ISS missions come home measurably taller, gaining up to 5 centimetres as spinal discs decompress in microgravity, and the extra height disappears within days once gravity crushes the vertebrae back into place
In 1962, NASA’s Mariner 1 Venus probe was destroyed just 294 seconds after launch when an Atlas guidance antenna fault exposed a missing overbar in the rocket’s ground-guidance program
How does a city-state of 6.1 million people with almost no natural freshwater meet up to 40 percent of its water demand with water that once went down the drain?
How did a country whose forests held just 6 cubic metres of standing wood per hectare after colonial logging and war rebuild them to more than 160 within a single lifetime?
In 1859, a solar storm now called the Carrington Event induced currents so strong in North American telegraph lines that operators disconnected their batteries and kept sending messages on the geomagnetic current alone, while auroras were reported as far south as Cuba
How did a conifer thought extinct for two million years turn up alive in 1994 within 200 kilometres of a city of 3.7 million people?
Why did a Bay of Bengal delta nation, after a 1991 cyclone killed some 138,000 people, plant hundreds of kilometres of salt-tolerant coastal forest instead of building higher sea walls?
How does a single tree colony in the American West cover roughly 106 acres, weigh around 6,000 tonnes, and share one root system that makes it a contender for the heaviest organism alive?
The Parker Solar Probe now passes within 6.1 million kilometres of the Sun's surface at 692,000 kilometres per hour, fast enough to cross the continental United States in about 20 seconds, shielded by a carbon-composite heat shield only 11.4 centimetres thick
Why does a cumulus cloud drifting overhead often weigh several hundred tonnes and still hang in the sky as if it weighed nothing at all?
