The main tank, brimful with ideas. Enjoy them, discuss them, take them. - Of course, this is also the #1 place for new submissions!
By chuff
#19288
the idea is this: in the summer you want your house to repel heat, in the winter you want your house to absorb heat. if you were to make a paint or vinyl siding that became darker when it got cold and lighter when it got warm, it would accomplish the goal.

Reward: just let me know it worked :-)
OFFSHORE
Finger Wheel Fidget Toy

A three inch wheel with rubber grip on the outside[…]

Makeover of backyard

Nothing to share but I definitely want to see the […]

Sticking Games

No fantasy but real sports. Professional level foo[…]

This must be very useful information. Thank you ve[…]