What im trying to figure out with this is experiment is how does the temperature of a rubber band affect the distance it stretches when submersed in water and supporting a constant weight? the water will be heated and i dont know what safety materials to use except for goggles. please help me?
Resin casting is usually made out of polyurethane and poured into a mold. It is a synthetic plastic. Its how a lot of toys and prop guns are made.
1) put in another battery (make sure it is new). 2) check for lint sometimes lint in the sensor will cause false alarms ( take the cover off and vacuum the inside). 3) if none of these work, then get a new one.
