Psychology & Psychiatry

What to do when your child throws a fit

(HealthDay)—You know the scenario—your child has a meltdown, leaving you frustrated, embarrassed and arguing even though your brain says it's a battle you're not likely to win.

Neuroscience

Blood flow command centre discovered in the brain

A team of scientists from Australia, France, New Zealand and the UK has discovered a group of brain cells that function as a 'master-controller' for the cardiovascular system by orchestrating the control of blood flow to ...

Health

How stress can affect your sleep

Stress not only harms your well-being but it also can prevent you from getting a reasonable amount of sleep. A Baylor College of Medicine sleep expert explains how stress can interfere with your nighttime schedule and ways ...

Health

Homemade mayonnaise made easy

(HealthDay)—An immersion blender is one of the handiest tools you can have in the kitchen. Not only does it let you whip up a soup or sauce in seconds, it stores easily in a drawer.

Immunology

A question of time

A team led by the Freiburg biologists Prof. Dr. Wolfgang Schamel and Prof. Dr. Wilfried Weber conducted an experiment in which they controlled the duration of the interaction of a specific protein with T cells, a type of ...

page 1 from 2

Light

Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

Three primary properties of light are:

Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.

This text uses material from Wikipedia, licensed under CC BY-SA