However, Descartes did not believe in a vacuum, rather he believed in an all pervading ether. Boyle had conducted many experiments which led him to believe in a vacuum and, having found no experimental evidence of the ether, to reject that idea.
Boyle ay isinasagawa ng maraming mga eksperimento na humantong sa kanya na naniniwala sa isang vacuum at, sa pagkakaroon ng hindi natagpuan experimental katibayan ng eter, upang tanggihan na ideya.