While it looks like this aluminium foil ship is floating on nothing but thin air, it is in fact kept above ground by some sulphur hexafluoride, a gas that is significantly denser than air. It is also interesting to note that when inhaled, sulphur hexafluoride will make your voice sound much deeper than it usually is.
For today’s edition of “Deal of the Day,” here are some of the best deals…
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StunningArt/Shutterstock Matyáš Moravec, University of St Andrews Modern physics suggests time may be an illusion.…