3 ms·
Surprisingly no, google claims cans have been getting lighter but 15 grams empty is realistic, lets assume water at a gram per mL, 12 oz water is about 350 gram
by VLM 11y ago
Surprisingly no, google claims cans have been getting lighter but 15 grams empty is realistic, lets assume water at a gram per mL, 12 oz water is about 350 grams, that is about 5%, I don't remember the exact specific gravity of aluminum but its less than 3 (not a very dense metal...) so 5/3% by volume, roughly? This is all engineering estimates done in my head so exact numbers will be different but its not going to be orders of magnitude off.
A significant source of error beyond 1 sig fig is going to be the weight of ink/paint and the weight of the pop tab on the top. Also cans are not filled 100% with liquid, so there is air space (it has 12 ounces of liquid, but its a 12.something volume tank)
Something interesting to think about is fluid dynamics, a foam like this would stop sloshing at almost no weight penalty. If you like the idea of tin foil thickness gas and water tanks, then this would seem to be a requirement for that technology.
- irl_zebra 11y agoWell, the volume of a regular aluminum soda can is 375 cm^3 [1]. A modern can is about 15 grams of aluminum.[2] Just a really quick plugging it into Wolfram Alpha, the volume of 15 grams of aluminum is about 5.6 cm^3. [3] So, that's about 1.5% aluminum by volume. So a soda can is about 98.5% air by volume. [1]: http://jwilson.coe.uga.edu/emt668/emat6680.folders/howard/volumeof12ozcan/volumeof.12.oz.can.html http://jwilson.coe.uga.edu/emt668/emat6680.folders/howard/vo... [2]: http://aluminium.org.au/FAQRetrieve.aspx?ID=45688 http://aluminium.org.au/FAQRetrieve.aspx?ID=45688 [3] : http://www.wolframalpha.com/input/?i=15+grams+of+aluminum+to+volume http://www.wolframalpha.com/input/?i=15+grams+of+aluminum+to...
- knodi123 11y ago> a foam like this would stop sloshing at almost no weight penalty So would filling your gas tank with sponges; however, with that much surface area exposed to the liquid, I suspect it would be really hard to get the majority of the liquid back out.