In domestic thermos small size is screwed on top of the cap, which is often a too strong tightening the cracks or even breaks. Instead of trying to stick together, it should be replaced by a suitable diameter plastic cups.
Recommend to read
THREE-PHASE – TO THE HOUSEHOLD NETWORK
Among the various methods of connecting three-phase asynchronous electric motors to a single-phase network, the simplest and most well-known is probably the use of a capacitor called (due...
FLYING OVER THE WAVES
Hardly anyone would dispute that the twentieth century was for the engineers of gold in the literal and figurative sense. Discoveries and inventions made in those years will be used more...
