When Will Humans Go Extinct?
Interestingly enough there are many people who feel the best thing for the planet is the extinction of humans. How likely is this to happen?
Interestingly enough there are many people who feel the best thing for the planet is the extinction of humans. How likely is this to happen?
The Holocene extinction event is killing species at 100 times the rate of normal extinction patterns but is a term that most people have not heard of.
The stories behind several are probably apocryphal: For example, Joseph Michael Montgolfier is said to have conjured up the idea of ballooning when he saw his wife’s chemise, drying by fire, rise up as it became filled with hot air. A number of other such stories, however, are known to be true…
A threat to your survival is perceived, and your body is instantly alarmed and alert.
Ergonomics is application of scientific information concerning humans to the design of objects, systems and environment for human use with accommodation in mind.
Endocrine glands are also known as ductless glands. They secrete hormones directly into the bloodstream. The endocrine glands I in both males and females are the same except for the testis (male) and the ovary (female). The majority of endocrine glands are controlled by the pituitary gland but some are stimulated by the nervous system or by chemical substances.
The brain is made up of very soft and delicate tissues. It is protected from injury by the cranium and layers of membranes called meninges. The brain consists of two layers. The outer layer is called the grey matter and the inner layer is called the white matter. The grey matter is made up of cell bodies of neurons while the white matter consists of nerve fibers..
The sight of a dam – one of the largest and most complex structures that humanity has ever created – can be quite breath-taking. Take a look at some of the most spectacular of these structures.