history of meter in tamil ||TamilscienceYT||
Channel: Tamilscience YT
Date: 06/07/2020

#meter #length#Tamilscience YT
 meter is the  unit of length in the International System of Units. The SI unit symbol is m. The metre is defined as the length of the path travelled by light in a vacuum in of a second.
Time stamp
0:00  intro
0:18  Ancient method
1:05  meridian distance 
1:25  power of trignometry
2:05 the meter of archives
2:20 krypton standrad
3:02  light speed
3:02 si prefixes

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