https://www.marcelpost.com/wiki/index.php?action=history&feed=atom&title=Intriguing_mattersIntriguing matters - Revision history2026-04-27T10:46:32ZRevision history for this page on the wikiMediaWiki 1.39.17https://www.marcelpost.com/wiki/index.php?title=Intriguing_matters&diff=3067&oldid=prevAdmin at 22:30, 29 December 20182018-12-29T22:30:44Z<p></p>
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===Why is the sky dark at night?===<br />
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* red-shift (to infrared) causes far away stars to be invisible to the human eye<br />
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* universe not old enough to have stars everywhere<br />
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===Why is glass transparent?===<br />
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* in specific atoms where the electron energy gap is too high for photons with visible wavelengths to excite the electrons into a higher energy level, the photon is not absorbed and will pass through.<br />
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===Why are there two tides per 24h on earth when there's just one moon?===<br />
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* water and earth are pulled on the near side, lagging water bulge on the far side.</div>Admin