Ceramics: This Material Won't Melt Away 

Most of our old bathtubs are actually a porcelain enameled steel, such as my old claw foot bathtub for instance. Sinks can commonly be either porcelain enameled steel or fully porcelain like a toilet, my bathroom sink is fully porcelain. The physical size of a bath tub would likely make it cost prohibitive to make it out of nothing but porcelain and it would be prone to shattering easily. The other issue with a fully ceramic bath tub would be that the weight of it would be insane, moving one into your house would be quite the project not too mention the floor remodel to handle the weight of it and a full tub of water inside it.

damn you stuck in the mid 1850s huh

I wish that I was an indoor toilet.

Is it? Unless your oven is electric, it still just heated by flames. Yes, gases do also burn at different temperatures, but a campfire is just a whole bunch of flame, kilins can make them hotter. Ovens are just the gas at the bottom being turned up, like the stove top.

I dare you to watch a colinfurze video.

No, not impossible to melt, just a much higher melting point than most metals used for constructing our machines and whatnot. The highest temp ceramic is listed as having a melting point of 7,226 F where as the highest melting point of any metal is 6,192 F for Tungsten. Most common metals melt anywhere from 400 F to 2400 F. The only material with a higher melting point than high temp ceramics that I can think of is diamond which has a melting point of 7,280 F. As diamond is much more expensive to create than ceramics it is not feasible for most applications, though Chemical Vapor Deposition ( synthetic diamond ) technology has come a long way in the last few years. In fact I am here trying to find better materials for my carbon arc furnace as the carbon arc burns at a temperature of over 5,400 F which is far too high for any metal that "I" have access to. Ceramics on the other hand are within my ability to afford, though the ceramics in my price range sadly do not have the impressive 7,226 F capabilities. Though on an interesting note, the clay used to create the heat shield tiles for the space shuttles is from a town about 10 miles from me.

@@edwardortman2593 rah thats an explanation