Template:Selected anniversaries/August 18: Difference between revisions

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||1783: A huge fireball meteor is seen across Great Britain as it passes over the east coast.
||1783: A huge fireball meteor is seen across Great Britain as it passes over the east coast.


||1823: André-Jacques Garnerin dies .... balloonist and the inventor of the frameless parachute.
||1823: André-Jacques Garnerin dies .... balloonist and the inventor of the frameless parachute. Pic.


||1824: Pierre-Émile Martin born ... engineer who adapted the steelmaking process by using the open-hearth regenerative furnace invented by Charles William Siemens and Friedrich Siemens (1856), now known as the Siemens-Martin process. The Siemens' idea was to capture heat from exhaust gases in chambers flanking the furnace containing fire-bricks. When the flow is changed to preheat the input gases using recycled energy stored in the bricks, huge fuel savings result. Pic.
||1824: Pierre-Émile Martin born ... engineer who adapted the steelmaking process by using the open-hearth regenerative furnace invented by Charles William Siemens and Friedrich Siemens (1856), now known as the Siemens-Martin process. The Siemens' idea was to capture heat from exhaust gases in chambers flanking the furnace containing fire-bricks. When the flow is changed to preheat the input gases using recycled energy stored in the bricks, huge fuel savings result. Pic.

Revision as of 19:01, 30 January 2019