For my engineering design course, I am thinking about coming up with a
product that actively warms/cools up a cup of coffee to a desired
The product may resemble a thermos, and will be portable and rechargeable.
Would you be willing to spend about 15-20 dollars on a mug/thermos that
actively warms your coffee at a desired temperature so your coffee is
Your comments would be very appreciated.
- posted 15 years ago