did he also teach?
Yes, he taught at a school in Rotterdam.
Isaac Beeckman
From 1620 to 1627 he taught at the Latin school in Rotterdam, where he founded a "Collegium Mechanicum", or Technical College.
what is the value of speed of light in vaccum Its exact value is defined as “approximately”, because, by international agreement, a metre is defined as the length of the path travelled by light in vacuum during a time interval of second. who was the first to attempt to measure it? "Isaac Beeckman", in 1629. who is he? He was a Dutch philosopher and scientist.
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Isaac Beeckman [SEP] Biography
In 1616 he sold the business to his apprentice and went to study medicine in Caen, where he graduated in 1618. On his return, he became an assistant rector in Utrecht. On April 1620 he married Cateline de Cerf, whom he knew from Middelburg, and with whom he would have seven children. From 1620 to 1627 he taught at the Latin school in Rotterdam, where he founded a "Collegium Mechanicum", or Technical College. From 1627 until his death at the age of 48 he was rector of the Latin school in Dordrecht.