25 impossible amazing science toys (gadgets)

Three of these twenty-five impossible amazing science toys/gadgets are described in the three links below.
1) A perpetual battery that never needs re-charging is described in the link
https://www.youtube.com/watch?v=nYb5OkV6_Yo
2) A reactionless drive machine is described in the link https://www.youtube.com/watch?v=xX14NK8GrDY
3) A simple electric heater of COP > 1 is described in the link https://www.youtube.com/watch?v=BAydFMDKj2Y