« previous next »
« previous next »
 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t Glaucoma. (a) A buildup of pressure within the eye cavities, often caused by a blockage of vessels t
VESPR Chart. My favorite for many years VESPR Chart. My favorite for many years
How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ... How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ...
Graphical representation of a sinusoidal longitudinal wave Graphical representation of a sinusoidal longitudinal wave
Visual Elements of Pictorial Expression: A. Carpet Page from the Lindisfarne Gospels Visual Elements of Pictorial Expression: A. Carpet Page from the Lindisfarne Gospels
A truncated cell lineage chart for C. elegans A truncated cell lineage chart for C. elegans
Video: Causes of Acne

For a complete list of videos, visit our video library