<br><br><div><span class="gmail_quote">On 7/28/06, <b class="gmail_sendername"><a href="mailto:morvany@cs.tcd.ie">morvany@cs.tcd.ie</a></b> <<a href="mailto:morvany@cs.tcd.ie">morvany@cs.tcd.ie</a>> wrote:</span> <br>
<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Anyway, according to wikipedia, your keyboard is likely mostly made of<br>Acrylonitrile butadiene styrene (ABS). "Production of 1 kg of ABS requires
<br>the equivalent of about 2 kg of oil for raw materials and energy"<br><br>Let's assume your keyboard weighs 1.5kg and that your hummer goes 12 miles<br>per gallon. Roughly 19.5 gallons of gazoline can be refined from 42
<br>gallons of crude (that's a barrel). The density of Texan crude oil is<br>0.873 kg/L. There are 3.78 liters in a gallon.</blockquote><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Putting it all together:<br><br>1.5 * 2 / 0.873 / 3.78 = 0.91 gallons of crude to make the keyboard, that's<br>0.91 * 19.5 / 42 * 12 = 5.06 miles (8.1km) driving the hummer.<br><br>It looks even tinier than I expected, someone might want to doublecheck
<br>the computation.</blockquote><div><br><div>
Assuming the data is correct:<br>
42 gal crude/bbl crude * 3.78 L/gal * 0.873 kg/L * 1 kg ABS/2 kg crude * 1 kbd / 1.5 kg ABS = 46.2 kbd/bbl crude<br>
19.5 gal gas/bbl crude * 12 hum mi/gal gas = 234 hum mi / bbl crude<br>
(234 hum mi / bbl crude) / (46.2 kbd / bbl crude) = 5.06 hum mi / kbd<br>
</div><br>Looks correct. Actually, to my completely uneducated eyes, that's a long way to tote a Hummer. I'm surprised it wasn't less. Making plastic is expensive -- though I guess I don't have to buy and throw away four keyboards a day (which would about cover the mileage of my commute).
<br></div></div><br>-- <br>John S Costello<br><a href="mailto:joxn.costello@gmail.com">joxn.costello@gmail.com</a><br>"Cargo cults are a faith-based religion and have no evidence for their beliefs. The only reason their religion seems silly to Westerners is that we happen to know the non-supernatural cause that started their religion. Basically they believe some dude was here, now he's gone, but soon he's coming back to save everyone. It's times like these when I tend to think Ann Coulter is absolutely fucking brilliant. I wish I could make a bunch of Christians mock a faith that believes in the imminent return of a once-living savior." -- Amanda Marcotte