5 Things Science Still Can't Answer
- 6 years ago
5 Things Science
Still Can't Answer These scientific mysteries
provided by Mental Floss will
have you scratching your head. 1. Why do we sleep? Theories revolving around energy conservation,
healing and memory functions have been
proposed, but there is not one definitive answer. 2. Why don't all thunderstorms produce tornadoes? It's typically understood that
tornadoes form when cold, dry air meets warm, humid air. But tornadoes have been known to form without dramatic temperature changes as well, leaving much to learn. 3. Why do we cry? Though scientists are
still stumped by the reason, they do know that the chemical makeup of tears produced by emotion differs from tears produced by something caught in one's eye. 4. How does general anesthesia work? The mystery lies at the molecular level. Scientists understand that pain signals are
blocked by changing protein function on nerve cells,
but no one really knows how this takes place. 5. Why do we laugh? Laughter isn't limited to humans. Rats, dolphins and other animals have been documented laughing as well. Many scientists believe we laugh to promote
positive social behavior, but there is still much to consider when factoring in evolution.
Still Can't Answer These scientific mysteries
provided by Mental Floss will
have you scratching your head. 1. Why do we sleep? Theories revolving around energy conservation,
healing and memory functions have been
proposed, but there is not one definitive answer. 2. Why don't all thunderstorms produce tornadoes? It's typically understood that
tornadoes form when cold, dry air meets warm, humid air. But tornadoes have been known to form without dramatic temperature changes as well, leaving much to learn. 3. Why do we cry? Though scientists are
still stumped by the reason, they do know that the chemical makeup of tears produced by emotion differs from tears produced by something caught in one's eye. 4. How does general anesthesia work? The mystery lies at the molecular level. Scientists understand that pain signals are
blocked by changing protein function on nerve cells,
but no one really knows how this takes place. 5. Why do we laugh? Laughter isn't limited to humans. Rats, dolphins and other animals have been documented laughing as well. Many scientists believe we laugh to promote
positive social behavior, but there is still much to consider when factoring in evolution.