Tag Archives: Einstein

Einstein’s light postulate saves Galileo

Good evening (local time)! I’d like to share with you the answer I gave to one of my students earlier today. He asked how Einstein’s postulate of a constant light speed (independent from an observer’s own state of motion) can … Continue reading

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De tweeling/postbode paradox

[Click here to read the English version of this blog post] De tweeling paradox van Einstein staat minder ver van ons af dan we denken. Waarom is hij dan zo duizelingwekkend? Ik heb mijn studenten enige extra begeleiding beloofd, vandaar … Continue reading

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The twin/postmen paradox

Einstein’s twin paradox is more familiar to us than we think. Then why does it feel so strange? I promised my students some extra guidance, so I wrote this post. [For a course I am currently teaching at a university … Continue reading

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Lecture: Newton & Einstein – physics meets philosophy

This Wednesday I’m giving a “pub lecture”: the lecture is both public and in a pub. Drop by if you’re interested! Location: “proeflokaal Faas (Zwaanshals 248, Rotterdam)” (google maps) Attendance is free; no reservation required. Time: 20.00 It is a … Continue reading

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Einstein and Kant: Synthetic Relativity?

Kant presupposed the possibility of knowledge, whereas Einstein presupposed the possibility of physics (by postulating relativity) Continue reading

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