What is inflammation and the steps in the process of inflammation? We often feel redness, heat, swelling and pain at the site of wounds. Actually this is bodyâs defence mechanism to destroy the pathogen. Tissue damage caused by wound or invading pathogenic organisms induces a complex sequence of events collectively known as inflammation.
A flame detector is a sensor designed to detect and respond to the presence of a flame or fire. Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system.
Human Ancestors Tamed Fire Earlier Than Thought. A South African cave has yielded what researchers are calling the earliest evidence of fire control by human ancestors. In a paper published today in the Proceedings of the National Academy of Sciences, an international team announces the discovery of burned plants and bones from 1 million years ago.