Are ciders and long drinks a thing in the US?
I would find it very very odd if long drinks were a thing outside Finland, Tallinn harbour, and some hipster clubs in Berlin that purportedly have them on sale there.
Non-alcoholic question: Do you guys have any recommendations for books/articles/scientific journals on armour and armour penetration? I'm planning on doing my Bachelor's thesis on armour penetration mechanics and I expect that some of you guys to know some good books on the subject.
Don't have the source at hand, but just read an interesting article how APFSDS (possibly the upper-end HVAP ammo too) shells travel so fast that the slant of the armour is next to insignificant: upon contact they treat the armour as if they were hitting water (or other liquid), and are deflected towards the path of least resistance - as if they had hit the plate at right angle or nearly so - resuming the original trajectory after penetration. Also the amount of ricochets caused by the slanted armour becomes negligible if the shell velocity is high enough. Think of a ray of light hitting a window: it refracts towards the normal and then continues on a parallel path to the original.
Of course, then you come to the realization that if you put 100mm armour at 45 degree angle, it's equivalent to 141 mm of armour, but surprise surprise, the height and thus the weight of the armour plate is now 1,41 times the height of a 100 mm vertical plate - or equal to a vertical plate of 141 mm thickness. Except that you just probably made your tank a bigger target, and it's still only 100 mm equivalent against kinetic penetrators.
So slanted armour is only really relevant against HEAT warheads anymore, unless we're talking really thin armour, as in armoured cars, APC's, or IFV's (which day by day are getting thicker) who might actually be penetrated by something that is slow enough not to "refract" upon impact.
EDIT: Now I'm actually intrigued whether this would concern HEAT warheads too, ie. whether the particles riding the blast wave would behave the same way. At least the "jet" is moving fast enough, much faster than the fastest kinetic round.
