was he for or against the church at the time?
He had an opinion of support.
René Descartes
In his "Meditations on First Philosophy", Descartes sets forth two proofs for God's existence. One of these is founded on the possibility of thinking the "idea of a being that is supremely perfect and infinite," and suggests that "of all the ideas that are in me, the idea that I have of God is the most true, the most clear and distinct." Descartes considered himself to be a devout Catholic, and one of the purposes of the "Meditations" was to defend the Catholic faith.
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. did he also teach? Yes, he taught at a school in Rotterdam. any well-known students or followers of his? Yes, "Johan de Witt" and "René Descartes". which field of study did the latter specialize or teach in? Modern Philosophy
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René Descartes [SEP] Religion
Descartes, however, was very much aware that experimentation was necessary to verify and validate theories. In his "Meditations on First Philosophy", Descartes sets forth two proofs for God's existence. One of these is founded on the possibility of thinking the "idea of a being that is supremely perfect and infinite," and suggests that "of all the ideas that are in me, the idea that I have of God is the most true, the most clear and distinct." Descartes considered himself to be a devout Catholic, and one of the purposes of the "Meditations" was to defend the Catholic faith. His attempt to ground theological beliefs on reason encountered intense opposition in his time.