Santorio Santorio created the first thermometer. He was the first inventor to include a numerical scale on a device that measured changes in degrees of hotness or coolness. The thermometer he invented was the first designed to take a person's temperature.Know More
Earlier versions of the thermometer were called thermoscopes. They could indicate whether there was a change in temperature, but they could not measure the degree to which the temperature had changed.
Daniel Fahrenheit is credited with inventing the first modern thermometer. He invented an alcohol thermometer in 1709, and he invented the mercury thermometer in 1914. He also developed the first widely accepted scale used to measure temperature.Learn More
Items invented in 1998 include Windows 98, the iMac computer and the MP3 player. Viagra was also approved for use by the United States Food and Drug Administration in 1998.Full Answer >
No single person invented algebra. The roots of algebra extend to the ancient Babylonians, who first developed mathematical techniques to solve problems using algorithms. Later work by Greek, Persian and Indian mathematicians further extended these techniques and laid the foundations for modern algebra.Full Answer >
Dr. James Naismith is credited for inventing netball. The no-dribble game was a spinoff of basketball that he invented in 1891 at a YMCA in Springfield, Mass.Full Answer >
William Morton first demonstrated the use of ether as an anesthetic, but no one knows who actually invented anesthesia. After Morton's demonstration at Massachusetts General Hospital, several people came forward claiming they had discovered anesthesia much earlier.Full Answer >