Archives of Ask A Scientist!
About "Ask A Scientist!"
On September 17th, 1998 the Ithaca Journal ran its first "Ask A Scientist!" article in which Professor Neil Ashcroft , who was then the director of CCMR, answered the question "What is Jupiter made of?" Since then, we have received over 1,000 questions from students and adults from all over the world. Select questions are answered weekly and published in the Ithaca Journal and on our web site. "Ask A Scientist!" reaches more than 21,000 Central New York residents through the Ithaca Journal and countless others around the world throught the "Ask a Scientist!" web site.
Across disciplines and across the state, from Nobel Prize winning scientist David Lee to notable science education advocate Bill Nye, researchers and scientists have been called on to respond to these questions. For more than seven years, kids - and a few adults - have been submitting their queries to find out the answer to life's everyday questions.
When a person has two eyes that do not track together correctly, crossed eyes result and double vision becomes a problem. An eye with poor vision can become 'lazy' and not track with the good eye. Then the image of an object is formed at non-corresponding points on the retinas of the two eyeballs, and nerve impulses sent to the brain are interpreted as two different images.
By having two eyes, we do see a single scene or object from two slightly different angles. This gives depth to a scene and we see in three dimensions. A View-Master viewer works with the same principle by having two photos of the same scene. Each photo alone shows a flat, two-dimensional picture but one photo shows a little more of the scene on the right and less on the left and the other photo reverses the process. When both photos are viewed simultaneously by a pair of eyes, the three dimensional aspect is restored.
- Why are cats so flexible?
- How do eye glasses improve a persons sight?
- Why do babies get their parents features?
- Is a horse's leg bone bigger than a human leg bone? If so, when a horse's bone breaks why is it so much harder to heal?
- Why do your ears ring?
- Why does your tongue get stuck to metal in the winter?
- Why is it normal to move your arms when you walk or run?
- Why do we have fingernails?
- Why don't you see two things if you have two eyes?
- Why can't we swallow our food whole like snakes?