Did you know?
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Did you know?
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
Spectra of a Metal-Poor and a Metal-Rich Star
Order and Duration of Sleep Stages Through a Typical Night
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
Parts of a typical spark plug.
A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ...
Typical "butterfly" rash seen in SLE.