Abbreviations in Altimetry

[@davidallyn1818]

OMG I love the way you explain things!! I need to rewatch your altitude series just to get my head around it - but you broke it down into digestible chunks. Thanks!!

[@vittoriafiorentini8276]

Great video. Thank you very much

[@edsonherald3720]

! ! ! EXCELLENT ! ! !

[@phoonjzc]

Good

[@sundaramguruswamy5490]

Sea level not stable because because sea water bie pole magnet . One bar atmosphere pressure wave according to water waves. Earth magnet also not stable.also electrical voltage also not stable.