The horizontal fraction bar was introduced by the Arabs.
Did you know?
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
Did you know?
As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.
Did you know?
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Tooth Numbering System
Schematic overview of the cardiovascular system.
The central and peripheral nervous system
Procedures and Diagnostic Tests Related to the Integumentary System