The Sun, our source of light and warmth, is a notoriously poor photographic target, due to its extreme brightness and constant emissions of damaging ultraviolet and infrared radiation. However, with the right equipment, the sun can be a challenging and rewarding photographic subject.
While water fluoridation is purported to decrease your risk of dental cavities, fluoride needs to be applied topically for this to work. It doesn’t benefit your teeth when swallowed.
Swallowing fluoride displaces iodine from your thyroid, as iodine and fluoride are both halogens. Without iodine, you cannot make active thyroid hormones, raising your risk for Hypothyroidism.
Fluoride is a mitochondrial poison that sabotages your mitochondria’s ability to create cellular energy in the form of ATP, and an enzymatic reactor, meaning it reacts with enzymes in your body.
Insects pose a serious threat to collections of all types. The environment that is the most damaging to collections—high humidity, poor air circulation, poor housekeeping—is the most beneficial to insects. Libraries and archives can provide insects with food, water, and shelter if the building is accessible and conditions welcoming. If insect damage is evident in a library collection, a careful survey should be conducted using sticky traps to see what types of insects are causing the problem.