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Ancient man used bio-fuels by burning animal dung and plant material (such as wood) for fuel.
In more modern times, oil lamps where typically fueled with oil from animals such as whales.
So, in effect, bio-fuels where the original fuels, and only in modern times did petroleum-based fuels come into existence.
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Why are biofeuls described as carbon neutral?
Biofuels are considered carbon neutral because the carbon dioxide released when they are burned is equal to the amount of carbon dioxide the plants absorbed while growing. This creates a closed carbon cycle, where the carbon emitted is offset by the carbon absorbed during photosynthesis, resulting in no net increase in atmospheric carbon dioxide levels.
In what year was the compound microscope invented by Robert Hooke?
The compound microscope was invented by Robert Hooke in the year 1665.
Who invented gram stain?
The Gram stain was invented by Danish bacteriologist Hans Christian Gram in 1884. It is a technique used to differentiate bacteria into two categories based on the differences in their cell wall composition.
Who invented cloning DNA?
Cloning DNA was invented by Paul Berg in 1972. He developed the first recombinant DNA molecule using genes from different organisms.
What were Robert Hooke's inventions?
Robert Hooke invented a watch escapement and realized it could be used in a clock accurate enough to be used to determine longitude.He invented a machine for cutting gears much finer than could be made by hand.He invented a tool for measuring the power of gunpowder, and a tool for measuring fine increments of angles, down to the second of angle, for astronomical objects.He invented the sash window.He invented a number of other things, some of which were also invented by other people, such as the universal joint.He did not invent the microscope, which was invented several decades before Hooke was born.He invented the microscope in the year 1681.Cell
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jv
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The first pencil case was invented in 1880 and Ebenezer Wood invented it.
