|
|
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).
Blood is approximately twice as thick as water because of the cells and other components found in it.
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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.
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
![Proper placement and monitoring of an automatic blood pressure cuff will reduce the risk of injury o](https://biology-forums.com/gallery/47/medium_2137_18_05_12_5_47_53.jpeg)
![Men who are at risk for heart disease and report work-related stressors are at greater risk of death ...](https://biology-forums.com/gallery/27/medium_660366_08_04_17_10_05_18_275521106.jpeg)