but have they tested it against various types of wear and tear, environmental exposure, being hit by an american truck or other large damage, water damage from a toilet overflowing and going unnoticed for a couple months, other stuff...
Obviously not yet, but given that similarly built churches have survived hundreds of years and multiple heavy earthquakes, I would say chances are high that it will be quite durable.
For water damage it would be probably more durable that regular concrete construction, as this mainly damages the rebar reinforcement, which can not be easily inspected for damage.
One approach to this is lightweight construction: the thinner the ceilings of a multi-storey building, for example, the more space is left for extra floors.
Given the way these are suspended and that you can fill the empty space with noise dampening material, they might be significantly better than normal concrete floors regarding noise transmission.
Concrete is something like a tenth of humanity's total CO2 emissions, so if this is something that lets us use less concrete then that's actually great
The process of making it involves cooking limestone until the carbon dioxide comes out, basically. Limestone is CaCO3 (one calcium, one carbon, three oxygen). Cement requires lime, which is CaO (one calcium, one oxygen). That leaves a C and two O, which stick together on the way out
The effect of larger shipping noise on whales is something we don't talk enough about. Also, there seems to be a bit of a gentleman's agreement on sonar usage to avoid power/frequencies that would be really harmful to whales, but the moment one countries breaks that agreement, they will have a leg up because they could get better long range and more detailed data on the movements of another country's navy.
There have been isolated test events that have lead to mass whale suicide.
This is really interesting to me from the angle of why do some species coexist with humans in suburbs, etc, but others are pushed aside by development. I'm sure there are many factors, but I think sound is a big one. I wonder if it's possible to teach a population of a skittish species to be comfortable with suburban life over a few generations.
Researchers at the Royal Melbourne Institute of Technology (RMIT) in Australia have developed special “energy-smart bricks” that can be made by mixing clay with glass waste and coal ash.
It mostly contains fine pieces of glass (92 percent) left over from the recycling process, along with ceramic materials, plastic, paper, and ash.
Based on bricks produced in their lab, they estimated that “each firing cycle led to a potential value of up to $158,460 through a reduction of 417 tonnes of CO2, resulting from a 9.5 percent reduction in firing temperature.” So basically, if a manufacturer switches from regular clay bricks to energy-smart bricks, it will end up saving thousands of dollars on its power bill, and its kilns will release less CO2 into Earth’s atmosphere.
“Bricks characterized by low thermal conductivity contribute to efficient heat storage and absorption, creating a cooler environment during summer and a warmer comfort during winter.
This advantage translates into energy savings for air conditioning, benefiting the occupants of the house or building,” the study authors explained.
Tests conducted by the researchers suggest that the residents of a single-story house built using energy-smart bricks will save up to 5 percent on their energy bills compared to those living in a house made with regular clay bricks.
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20ml xantham gum(optional for increased efficacy by keeping the solution homogenous)
Boil water, stir until fully dissolved, a small amount of solute should remain, if not, increase sodium sulfate concentration slowly until it does, indicating no free water molecules available for dissolution.
Solution should now be cooled to below 18c( freezing point) for an end product that will regulate temperature to 18c so long as it have sufficient(negative) thermal energy.
Solution of pure sodium chloride will have freezing point approx -20C, while solution of pure sodium sulfate has freezing point +35C. Adjusting the ratio of NaCl to Na2SO4 will shift the freezing point towards either end of thag spectrum, depending on what phase change temperature you are targetting.
I was engrossed and believed everything he said right up to where he said those little hand warmers are great. They're pish. They require boiling water before every use and don't last all that long. Unfortunately, that makes me dubious about the rest of his claims.
Energy wise, they last up to 60% as long as a block of ice in a plastic bag wrapped in a thin layer of foam so it doesn't frostbite you. The benefit is the ability to recharge them in the fridge or even in a cool place instead of the freezer.
also those hand warmers seem like they're bad because they're tiny not because their chemistry is flawed.
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