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.
Today, it is estimated that the time between depositing a can for recycling and the time it reappears in a vending machine or grocery store may be as little as 60 days. So how does this happen?
First, the cans you deposit are crushed as small as possible and pressed into dense cubes that are shipped to reclamation plants. At these plants, the cans are then shredded into popcorn-sized pieces and heated up hot enough to burn off all the coatings, decorations and paint. The paint on the outside of th cans decomposes at a lower temperature than the aluminum, so by the end of this process all the colors are gone and the recycled aluminum looks just like new aluminum.
These pieces are then melted and cast into large blocks, which are finally shipped to various factories to become one of many different possible products.
Right now, recycled cans are being made not only into new cans; they can also be used for building materials, car parts, bicycles, fishing poles, and baseball bats. So the next time you step up to the plate in a baseball game, it s possible that the bat you swing was made from a recycled soda can!
- Why does soap make bubbles?
- Are there rainbows when it snows?
- How come deserts have sand instead of dirt and soil?
- What makes gyroscopes in airplanes orient themselves correctly in any position?
- How do you make a rock into a metal or a crystal?
- What is in batteries that causes electricity?
- Does energy have mass? Does light have mass?
- How do MRI's work? What are all the ticking and banging noises?
- What causes the electron within an atom to emit photon packets? We were told to make a diagram of it. What causes the electron to skip down a level and emit photons?
- Why do ships float? Why don't ships sink?