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Dec 30, 2011

What is gene gun?

Gene Gun

A gene gun is a device used to introduce genetic material to cells through the use of tiny DNA-coated particles fired at high velocity into a cluster of cells. Gene guns are used in laboratory settings to conduct research, develop new products, and tag samples of materials.

The gene gun was created as a new way of proceeding with gene transformation of grains in response to the difficulty of getting bacteria across grain cell walls. It was designed by John Sanford at Cornell University in 1987 and made introducing new genetic material into plant cells much easier than previous methods, such as the use of viruses or agrobacterium.

Jul 10, 2011

What is a Taser gun?

A Taser is an electroshock weapon that uses electrical current to disrupt voluntary control of muscles. Its manufacturer, Taser International, calls the effects "neuromuscular incapacitation" and the devices' mechanism "Electro-Muscular Disruption (EMD) technology". Someone struck by a Taser experiences stimulation of his or her sensory nerves and motor nerves, resulting in strong involuntary muscle contractions.

What is Hot Water Spring

A hot water spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.