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Apparently, this user prefers to keep an air of mystery about them.

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31 Does an electric vehicle going downhill recover energy? Sep 14 '17
5 How do I refute this WTC argument? Jun 25 '17
4 Why use steam water and not other fuild in steam engines? May 12 '19
3 Turbocompressor spool geometry May 26 '16
2 Magnetic treatment of hard water to prevent scale and corrosion? How does this work? Apr 12 '19
2 How can I make an uncalibrated flow meter for water flows of a few liters per hour Apr 28 '18
2 What is the difference between NPT and pipe diameter? Sep 9 '17
2 What is the opposite of “parallel” in engineering? May 5 '17
2 Vacuum Pump hg" vs Pa units? Jul 12 '16
1 How does this screw height adjustment mechanism work? Nov 11 '18
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