Who are the proponents of electricity? Most people give credit to Benjamin Franklin for discovering electricity. Benjamin Franklin had one of the greatest scientific minds of his time. He was interested in many areas of science, made many discoveries, and invented many things, including bifocal glasses. In the mid-1700s, he became interested in electricity. Who […]
What is the best resolution for a telescope?
What is the best resolution for a telescope? Resolution of the telescope The Hubble Space Telescope has a best resolution of about 0.05 arcsecs. What is high spatial frequency? Spatial frequency describes the periodic distributions of light and dark in an image. High spatial frequencies correspond to features such as sharp edges and fine details, […]
How can the internal resistance of a battery be reduced?
How can the internal resistance of a battery be reduced? Sulfation and grid corrosion are the main contributors to the rise of the internal resistance with lead acid. Temperature also affects the resistance; heat lowers it and cold raises it. Heating the battery will momentarily lower the internal resistance to provide extra runtime. How do […]
What are similarities between speed and velocity?
What are similarities between speed and velocity? Speed and velocity both represent a way to measure the change in position of an object relative to time. In fact, for a straight line motion, the speed and velocity of an object are the same (since distance and displacement will be the same). Speed and velocity are […]
Why does pressure increase with density?
Why does pressure increase with density? Density and pressure/temperature Density is directly proportional to pressure and indirectly proportional to temperature. As pressure increases, with temperature constant, density increases. Conversely when temperature increases, with pressure constant, density decreases. Is living in high altitude healthy? Living at higher altitudes seems to be associated with lower mortality from […]
Why do doctors shine light in eyes?
Why do doctors shine light in eyes? You’ve seen it on television: A doctor shines a bright light into an unconscious patient’s eye to check for brain death. If the pupil constricts, the brain is OK, because in mammals, the brain controls the pupil. What happens to pupils when you shine light in one eye? […]
What are the similarities between a data table and a graph?
What are the similarities between a data table and a graph? Graph and table are similar because they both present the evidential and statistic data given and yielded from a certain experiment or testing. They both have a role in classification, categorization, interpretation and organization of the data. How do you represent data in a […]
How do you read a seismogram?
What is the weakest bone in our body?
Can you go on a roller coaster pregnant?
Can you go on a roller coaster pregnant? Avoid amusement park rides, water slides and roller coasters. Forceful landings and sudden sharp stops can hurt your baby. Staying away from rides like these might be challenge if you already have other rugrats that may want to go, or friends that invite you out. Can you […]