pendulum watch การใช้

• Aboard " Reserve ", Holmes tested a pair of pendulum watches conceived by Christiaan Huygens.
• His name and fame are perpetuated for being the inventor of the pendulum watches; but according to the usual fate of most projectors, while others were great gainers by his ingenuity, Mr . Barlow had never been considered on that occasion, had not Mr . Tompion ( accidentally made acquainted with the inventor's name ) made him a present of 200l . [ ?00 ].