There's a running joke in my family that centers around my older sister's absolute refusal to use a cup or mug with ingrained coffee stains. Although a cup has clearly been washed thoroughly ...
ClearPV is an insulated glass unit (IGU) window that can generate up to 30 W of electricity per square metre, while maintaining the window’s transparency and the building’s aesthetics.
(And glass bottles, not being insulated, don’t perform well in this ... but because of their included caps (travel-mug caps) or their available sizes (limited to smaller capacities), they ...