Laser

Memory of the day: James Bruce discovers what is believed to be the source of the Nile River in 1770

Sun, 14 Nov 2021 - 12:21 GMT

In the following lines, ET reviews important world events that took place on November 14.

On the Pulse

Wed, 16 May 2018 - 10:00 GMT

Skyrocketing prices have led to practitioners buying cheaper devices and spare parts or manipulating the pulse width and duration.

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