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What Can You Do with a Laser? – Diameter of a hair
What can you do with a laser at home? Tease a cat, of course, but can you use it to measure something really small?
Supplies needed to participate in all the activities:
● Inexpensive laser pointer
● Ruler
● Tape
● A hair, preferably from someone with dark hair. Gray hair doesn’t really work, although blonde seems to. The hair needs to be a few cm long. You could also use fine thread.
● Calculator or calculator app

Oct 30, 2020 01:00 PM in Eastern Time (US and Canada)

Webinar is over, you cannot register now. If you have any questions, please contact Webinar host: Traveling Lecturer travelinglecturer@osa.org.