Great white sharks. Trophic Pyramid Information that is in video: An ecological pyramid (also trophic pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem.
The risk is that you may not be able to remove all the acid and if it is left on the metal it will continue to corrode the metal. So to give you a quick answer, you can use vinegar to etch the aluminum, but you have to rinse the surface thoroughly to remove all the acid residue.
Whether the first use of vinegar on chips was alone or from a pickled egg jar, we will likely never know. Note, however, that the main users of vinegar on chips (Britain and Commonwealth) often use malt vinegar, which would not have been used to pickle eggs.