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1 vote

How powerful would a laser need to be to melt through an iron girder from a distance of ~260m?

Laser weapons are making a comeback, specifically for targeting cheap drones in the new age of warfare. Lots of variables to consider more than just power. There is lots of public information ...
ericnutsch's user avatar
  • 8,151
1 vote

Maximum rate of heat transfer in Effectiveness NTU method for a heat exchanger

We use $\Delta T_{max}$ because it is the difference between the warmest and the coldest temperatures in the system. An infinite counter flow heat exchanger would approach that, but this is an upper-...
Julek's user avatar
  • 111

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