the branches of learning (as philosophy, arts, or languages) that investigate human constructs and concerns as opposed to natural processes (as in physics or chemistry) and social relations (as in anthropology or economics)
more about toilets
The inevitable post about toilets | Almost Passive House: "Peter Yost recommended the Niagara Stealth, which he installed in his house more than a year ago. The Stealth ($300) is a single-flush, vacuum-assisted toilet that uses a mere 0.8 gallons per flush (most dual-flush toilets use that amount for only the small flush, and more for the big flush). It's very quiet (Peter let us test his) and by all accounts works great. We even asked a disinterested plumbing supply rep about it, and he told us that a customer with multiple rental properties is gradually buying them for all his units because it's saving him so much on water, and the tenants haven't had any complaints."