Here is a cool thing to do. Start your car’s engine. Get out of the car and go around to the back. Use your iPhone or other cell phone camera to take a picture of the exhaust pipe. You have just used 21-century high-tech to take a picture of some 19-century low-tech. Most people are so proud of their high-tech phone thingee and what it can do while continuing to burn hydrocarbons to move around (sometimes while using that phone thingee.) At the same time most people complain that gas prices are too high while burning 25% of what they buy idling their engines while sitting in traffic.
At 20,000 miles per year that person wastes 200 gallons at $3.50 per gallon. If they did not waste the fuel the equivalent cost per gallon would be about $2.80. So stop complaining about the price of gas and do something about your driving. Stop using 19-century technology.
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