we are going to talk about Alvin we are not talking about alvin york the famous world war, one hero, we are talking about alvin the submersible. this has a simple system to get to the bottom 4 weights once you reach the bottom. and want to go to the top you pull a lever and it drops the weights meaning you need to have new weights for every single time. and if I were them I wouldn't trust a buttun with my life what if something gets wrong with the circuits it won't activate the clasps with the weights. I would see somehow to do it manually.
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so I have read this part before but I never told you about it this is quite interesting. called rooster earplugs the rooster lets out a cockle doodle do that has 140 decibels. of sound that's loud enough to defend. you that is why the rooster does it in a high place and away from the hens. so he doesn't deafen them also the rooster has these built-in earplugs that totally block up his ear ducts. also he has a lot of hair or something like that in there so it would have to get through that. see even in this stupid animal God has put in these amazing adaptions or something like that other than adaptions.
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