Home Ask question Search Order By: ActiveCategoryClear Filter 2 Ans – What happens to the ash after combustion of trash in incinerators? 614 views 1 Ans Why does cold water take your breath away? 725 views 4 Ans how are fingerprints not affected by variables like body heat/injury/pressure/etc to the point that we can solve crimes using them? 826 views 4 Ans Why do some hi-tech devices with fully-drained, permanent lithium ion batteries need some battery charge before working even when you plug them in? 639 views 1 Ans Natural/passive/gravity ventilation – what is it and how do you make it work for your home? 570 views 1 Ans Why do refracting telescopes and binoculars make a small image if you look through the front lens? 648 views 11 Ans What’s the absolute minimum speed a plane has to go for it to stay in the air? 1.18K views 2 Ans why do you need to take the direction of the print you are printing into account in a 3D printer? 673 views 4 Ans how does Ping work? 811 views 2 Ans : Assuming the same alloy is used in several knives, what would be the difference between a good and bad knife ? 752 views 7 Ans Why are UFC and boxing matches the only mainstream sporting events where fans need to purchase PPV to watch it live? 929 views 7 Ans Why do mirrors reverse left and right but not up and down? 814 views 6 Ans why does salt melt snow on roads? 1.01K views 4 Ans Why do some shadows have a secondary, lighter shadow around them? 819 views 6 Ans Why do we burp babies? 974 views 1 Ans Why can your voice slur or slow down after eating cold foods? 730 views 5 Ans Why are there so many file formats for audio, video, and photos? 853 views 3 Ans Why do our noses get cold so easily? 1.02K views 9 Ans how do underwater flares (or matches) maintain a flame or light when they are surrounded by water? 943 views 3 Ans eli5: If I’m in the Southern hemisphere and I see the full moon, will someone in the Northern hemisphere see it too? 938 views « Previous 1 2 … 1,644 1,645 1,646 1,647 1,648 … 3,197 3,198 Next » Question and answer is powered by anspress.net
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