Neutral Buoyancy…Not as easy as it looks

What this is....an object's mass (your body) within a medium (lake, pool, river, ocean) equals the weight of the displaced medium.  Or as Wikipedia says:  "An object that has neutral buoyancy will neither sink nor rise".  I drew a little picture that might help...........   What can I say .... I'm not an artist.  But basically, …

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Buddy Breathing

My husband learned to scuba dive in Alaska.  I'd send him off with two thermoses....one with hot water and one with coffee.  When he got out of the water he'd pour the hot water into his gloves so he could warm up his fingers enough to get out of his gear and drink the coffee.  …

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