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Steam-Powered Car Breaks Century-Old Speed Record
mcgrew writes "New Scientist reports that a steam-powered car has broken the 1906 record of 204 km/hr (127 mph) for the fastest steam-powered automobile, the Stanley Steamer. The Inspiration made a top speed of 225 kilometres per hour (140 miles per hour) on August 26. 'The car's engine burns liquid petroleum gas to heat water in 12 suitcase-sized boilers, creating steam heated to 400C. The steam then drives a two-stage turbine that spins at 13,000 revolutions per minute to power its wheels.The FIA requires two 1.6-km-long runs to be performed in opposite directions — to cancel out any effect from wind — within 60 minutes.'"
That style of bike is called a Penny-farthing.
It's not like we use steam for cutting-edge tech like nuclear power plants or anything.
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The name of the bike you are, presumably, referring to is called a penny farthing. They worked by direct drive. The cranks were tied directly into the front hub. You would generally get the largest wheel your legs would allow so that you could travel as fast as possible. The bigger diameter of the front wheel the further you would go with one rotation.
Interestingly the first geared bicycles, that resemble the ones we ride now, were called safety bicycles. Presumably this was because you were closer to the ground and had less distance to fall. However the invention of gearing on the safety bicycle allowed a rider to travel much faster than would of even been possible on a penny farthing. Bicycles today are far more dangerous than a penny farthing. Even going downhill, the penny farthing rider is limited to how fast they can pedal (the cranks never stop spinning) but todays bicycles employ multiple gearing ratios and free wheels/hubs that allow for extremely fast speeds. As I understand it penny farthings quickly died out after the invention of the safety bicycle.
-Will
although i'd be REALLY impressed if someone invents a steam powered aircraft/ helicopter
Apparently both airplanes and helicopters have been powered by steam.
When our name is on the back of your car, we're behind you all the way!
Sure the temperature means something. You don't get steam above 212F without increasing the pressure. So the temp tells you roughly the pressure. I did a quick search for a chart, and it says 400 degrees would be around 235 PSIG. In comparison, your 600 PSIG boiler ran about 489 degrees and the 1000 PSIG ran about 546 degrees.
http://www.indpipe.com/images/PDF/steam_temperature_pressure_table.pdf
(Just the first link I found.)
Um, no, they don't. Coal-fired ships generated steam to drive a reciprocating piston engine. Nuclear powered ships use their superheated steam to drive turbines.
Also, "naval", unless the ships you're referring to are in fact associated with belly buttons.
In 1905, the British Admiralty announced all new ships of the line would be turbine driven.
Babcock & Wilcox built coal fired boilers through the 50's - most of these driving turbines.
By the time of the Stanley record, piston steam was on it's way out for capital ships
Now, some WWII naval ships used piston steam driven pumps for damage control, but it sounds like you're talking about main propulsion.
> Coal-fired ships generated steam to drive a reciprocating piston engine
References?
Here's one to the contrary :
http://en.wikipedia.org/wiki/Turbinia
http://en.wikipedia.org/wiki/Steam_turbine#Marine_propulsion
Also from that latter article:
"Steam turbine locomotives were also tested, but with limited success."
which, I think, is what you're talking about.
Max.
Ah yes. A common myth about the "illiterate past" that is simply not true.
According to de Tocqueville who traveled the U.S. and documented what he saw, the literacy rate during Thomas Jefferson's term (circa 1804) was nearly 100%. Parents bought "readers" for their children and expected these kids to self-teach themselves how to read and write. They recognized that their new Republic would only work if the voters were educated enough to read the weekly newspapers.
By 1906 every state had mandatory education upto 9th grade, so "the chance" your average American knew 7th grade math was effectively 99.9%.
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