How can harmful substances be removed from waste water?
It’s not a pretty sight: Water discharged by home toilets, restaurant dishwashers, agricultural runoff, manufacturing processes, an...
Can we capture energy from speed bumps for my 10th-grade science fair?
It depends on whether your science fair is being held in the parking lot or the school gym…
Can nuclear waste be put to some positive use instead of just polluting the environment?
Technically yes, but we need to develop the technology to make it feasible…
Can portable electronic devices (like my phone) be recharged wirelessly?
Yes, but those little devices use a lot more power than you might think…
How can middle school students learn about civil engineering?
Read some cool books, ask questions, and get dirty…
Can global warming be reversed?
It is getting warmer out there, and it isn’t an easy problem to solve…
Can we calculate the efficiency of a natural photosynthesis process?
Engineers have a lot to learn — from plants…
What projects can a sixth-grader interested in electrical engineering start with?
That’s just about the right time to start learning about simple circuits and the fundamentals of electricity and magnetism…
If I have a high risk of cancer, can my genes be modified to avoid it?
Not yet — but gene therapy could soon be a path to personalized “cures” for cancer and other diseases…
Can a computer generate a truly random number?
It depends what you mean by random…