How much has the battery improved during the last 150 years when compared to
other advancements?
How much has the battery
improved during the last 150 years when compared to other advancements?
In the early 1900s, the electronic vacuum tube was invented, which enabled
generating and amplifying signals. Soon thereafter broadcasting through the
air by radio waves became possible. The discovery of the transistor in 1947
led to the development of the integrated circuit ten years later. Finally,
the microprocessor ushered in the Information Age and revolutionized the way
we live.
How much has the battery improved during the last 150 years when compared to
other advancements? The progress has been moderate. A battery holds relatively little power,
is bulky, heavy, and has a short life span. Battery power is also very
expensive.
Yet humanity depends on the battery
as a power source. In the year 2000, the total battery energy consumed
globally by laptops and mobile phones alone is estimated to be 2,500MW. This
equals 25,000 cars powered by a 100kW engine (134hp) driving at freeway
speed.
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