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Astrophysics, the study of the physical properties of celestial bodies, arose during the 19th century and is closely connected with the determination of the chemical composition of those bodies. In the 20th century physics and astronomy became more intimately linked through cosmological theories, especially those based on the theory of relativity. See astronomy: History of astronomy. The physical sciences ultimately derive from the rationalistic materialism that emerged in classical Greece , itself an outgrowth of magical and mythical views of the world.
The Greek philosophers of the 6th and 5th centuries bce abandoned the animism of the poets and explained the world in terms of ordinarily observable natural processes. These early philosophers posed the broad questions that still underlie science: How did the world order emerge from chaos? What is the origin of multitude and variety in the world? How can motion and change be accounted for? What is the underlying relation between form and matter?
Greek philosophy answered these questions in terms that provided the framework for science for approximately 2, years. You are using an outdated browser. Please upgrade your browser to improve your experience and security.
Physical science. Article Media. Info Print Print. Table Of Contents. Submit Feedback. Thank you for your feedback. Written By: Margaret J. Osler J. Brookes Spencer Stephen G. See Article History. Top Questions. Foundations of mathematics. Start Your Free Trial Today. What is the best way to treat a concussion?
What is the best way to decrease infant mortality rates in developing nations? How can we eliminate polio? What can cities do about it? Are E-Cigarettes a path away from tobacco or towards it? What is inflammatory bowel disease? How can it be best treated? Can the food you eat help you avoid this chronic illness? What is the importance of the microorganisms which live inside and on humans?
How to they help and hurt us? What alternatives to antibiotics are being developed? Can those clues help doctors to diagnose us?
Can the odors of our bodily fluids give us clue about our health? Can 3-D printing technology be used to help in medicine? Can 3-D printing be used to create body parts and organs for people? Can traditional Chinese medicine techniques like acupuncture, cupping, reflexology, and massage therapy really work? How is nanotechnology helpful in treating cancer? Are the chemicals used in food packaging harmful to human health?
What treatments are available for women who have repeated miscarriages? Can stem cells be used to help cut death rates in heart attack patients? Can miscarriages be prevented with lifestyle changes? Are eating disorders fatal? How can they best be prevented? What is really the best and healthiest diet for humans? Is it low-carbohydrate, high-carbohydrate, low-sugar, high-protein, or vegetarian? Magazine and Newspaper Links You can find out the most current arguments on scientific and medical issues by looking through recent issues of major newspapers and magazines.
BBC Science : Includes both articles and videos about recent events and scientific discoveries. The China Daily: Discusses the development of science and technology in Asia. Gives information about how China is working with Africa and other developing nations to improve health and science.
Discover: Features articles about many different medical topics, current news, and research. See results. Mental Health Topics Why do some people remember dreams and others don't? Does this affect mental health? Does mental illness cause you to get physical illness more frequently? What makes us human? How is the human brain different? Do shorter people really have an inferiority complex?
How can this best be treated?
Purpose of the GLE:
How important is sleep to mental health? What are the long-term effects of using drugs like Prozac or Ritalin on mental health? Is intelligence static? What is intelligence? How can it best be measured? How can teenage depression be best diagnosed and treated?
Are most homeless people mentally ill? Can people be cured of multiple-personality disorder? How can we best prevent suicide? What is schizophrenia? What are the treatments? How does family stress affect brain development in children? Does more stress equal more headaches and other physical symptoms? How can families help their elderly loved ones feel less lonely and depressed?
Does epilepsy or asthma increase the risk of self-harm? Who suffers chronic pain the most? How is this related to mental health? Does stopping smoking improve mental health? What is the effectiveness of behavioral therapy techniques?
Earth Science Quizzes Online, Trivia, Questions & Answers - ProProfs Quizzes
Does caregiving cause psychological stress? Do spirituality and religion protect people from mental illness? Do concussions increase the risk of depression? Psychology Topics Does drinking soda or eating sugary foods increase aggression in children? Does a mother's depression during pregnancy affect her baby's brain? Can talk therapy really change the brain?
How does Post Traumatic Stress Disorder affect people's lives? Do premature infants need to hear parent's voices? Do parasites have a way of changing our behavior? Can bad memories be erased? How does your sense of taste or smell relate to your personality? Do men and women have the same sense of smell? Does switching schools lead to kids having a higher risk of psychosis?
What is the impact of bullying on children?