nitroglycerin wrote: I'm simply reciting what I've learned in my Chemistry textbook (I have a final tomorrow...wwaaaahhhh...)...Did undergraduate research on Galvanic Cells and corrosive mechanisms.
Perhaps you are not aware of the fact that sites like Woot attract intelligent, educated people. You're in a realm of geeks, nerds, scientists, free-thinkers, artists, and general smarty-pants. I'm going to assume with your chemistry background and username like C3N3H5O9 that you are young.
Chemistry class is great; I've not only attended many, I teach them. Your textbook tells you that freezing a compound inhibits oxidation, but that's incomplete. Perhaps you'd care to enlighten the class as to why if freezing prevents oxidation, steel shelving inside freezers always rusts.
ctwatts500 wrote:I couldn't bring myself to read all 14 pages, so this may have been covered.
What Hatcher found, and others have verified, is that a bullet fired straight up doesn't achieve a terminal velocity sufficient to cause fatalities when it comes back down.
A bullet fired at a 45* angle, however, can travel miles, and will still have a significant horizontal velocity. Such bullets are absolutely lethal, and explain the disparity between the 'falling bullets kill' and 'falling bullets are harmless' camps.
Yes, the subject has been beaten senseless:
...and Hatcher was a hack writing his recollection of a flawed study he observed 45 years prior.
lexicon5 wrote:It was proven on Mythbusters...a bullet fired on a trajectory, does and will kill if it hits a human in the wrong place. Police have verified this very tale.
See the above link.
buffaloed wrote:I have unintentionally tested this by storing batteries in my garage. Over half of them leaked when used. Cooling makes materials contract, heating makes them expand. When you freeze batteries you damage the integrity of the packaging.
That's not a reliable test by any scientific standard. Cooling also does not necessarily shrink an object. To prove it, put a bottle of wine in the freezer. Water expands as is freezes, and as wine is 80-90% water, the freezing wine will push the cork out. Works like a charm on a broken cork, but might affect the flavor.
This may actually help your argument. Frozen batteries may develop cracks in the case seals should the electrolyte freeze, though I doubt it would solidify. A 30% solution of potassium hydroxide freezes around -85 degrees Fahrenheit (-65 degrees Celsius).
qstick777 wrote:Expires on 10/2014? So that pretty guarantees they have been sitting in a warehouse for at least 4 years?
sdc100 wrote:No, if these are truly Heavy Duty (Zinc Chloride)
I neglected to mention that I also confirmed that Fuji gives them a 7-year shelf life, so these might have been sitting in a warehouse for 5 years.
danwat1234 wrote:Use them everyday for my pocket camcorders that I use in my car as dash cams.
Are you listening, Woot buyers? Perhaps you can come up with an aluminum foil deal. There appears to be a shortage on anti-brain-scanner hats.