jakeofheart
jakeofheart t1_j67z7co wrote
Reply to ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch
You would probably waste an awful lot of electricity, without being able to reach all the micro-organisms.
Ultrasound might be an answer though. I have seen a Swiss startup develop an ultrasound machine that you run your water through.
The vibrations field (or as Chromotron points out, the cavitation) has the effect of breaking down anything molecular that crosses it.
jakeofheart t1_je5aes4 wrote
Reply to eli5 why ancient historical buildings haven’t been kept up? Why are buildings like the Parthenon and the Colosseum in such disrepair? Greece and Rome/Italy have existed the entire time? by PickledSpace56
For the same reason the US infrastructure is falling apart: the funds to maintain the constructions are no longer made available.