Some thoughts for Obama Motors to consider!
Only 20% of the energy contained in gasoline is converted to mechanical energy by a traditional
internal combustion engine. Refinements in the internal combustion engine, improved aerodynamics, more efficient drivetrains and low resistance tires could make a greater contribution to increased milage and reduced carbon dioxide (CO2) production than advanced technology such as plug-in cars.
Among the
adjustments that could help improve fuel economy are turbocharging with smaller, more efficient engines that produce the same level of power; advanced heat management and cooling systems, which reuse the heat produced by the engine for energy; weight reduction, including extensive use of high-strength steel; better aerodynamics; more efficient air conditioners, transmissions and lighting devices and increased electrification leading to full hybridization with electric motor and…
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How much confidence do we have in the science?
Researchers use the scientific method to search for cause and effect relationships. This method requires that a
hypothesis be constructed. Scientists then design an appropriate well-controlled experiment to test that hypothesis. The results must be statistically significant and reproducible in order to be considered valid. There are a number of techniques that can be used to enhance the objectivity of a study as well as increase its statistical reliability.
In prospective medical research for example, we often use double blind, placebo controlled studies so that neither the researcher nor the patient knows if they are receiving the active drug or a placebo. This eliminates observer bias. Some times we cross the patient's over, so that the same patient takes both the active…
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It was all about the battery, they will say, while viewing the Chevrolet Volt on its prominent display stand -- diagonally across from the Edsel in some car museum of the future.
Obama Motors (OM), formally known as General Motors (GM) has reiterated its commitment to deliver the green
Chevrolet Volt, plug-in electric car to showrooms in November 2010 as planned. This despite the fact that President Obama's own
task force concluded that the Volt would be too expensive to be commercially viable. Industry analysts estimate the cost of the Volt will be around $40,000. As a comparison, the
price of proven green fuel-efficient vehicles such as the Prius ranges from $22,000 to $24,270 for the base model and the recently introduced, Honda Motor Co.'s Insight hybrid, $19,800…
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Coal-fired plants produce approximately 50% of the electricity in the United States and 82% of power generated carbon dioxide
emissions. If electric vehicles are charged exclusively by coal-fired electricity they produce more green house gases than a traditional gasoline-powered combustion engine car. In the future, electricity must be generated cleanly, if we expect automotive electric-drive technologies to reduce our carbon dioxide burden.
Wind and
solar will probably make a significant contribution to clean energy generation, but realistically, we cannot count on these two sources for more than 20-30% of our electricity needs in the next 20 years. Even reaching these modest goals will require a major investment in energy infrastructure and fundamental advances in technology. Nuclear power may be the only clean alternative.
In the United States…
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