Galaxies are circular, but we view most of them from an angle so they look elliptical, some we see exactly side on so the look like a line.
A galaxy viewed from above ( or below)
A galaxy viewed side on.
The alloy gives the optimum combination of four properties, ductile enough to be made into wire , heat resistance, suitable electrical resistivity, and low corrosion.
It is a standard test for corrosion of metals and the effectiveness of paints and other protective coatings such as resin and other anti corrosion methods.
It is designed to simulate, in a relatively short time, years of exposure to bad weather, sea water spray on ships, or even the effectiveness of household paint.
Removing temporary hardness simply involves boiling, soluble calcium bicarbonate is decomposed into insoluble calcium carbonate which you can filter out.
As Jim Griepenburg correctly comments, on an industrial scale water treatment plants add Lime to convert calcium bicarbonate to insoluble calcium carbonate which is then filtered out.
Inside the tube there is a long strip of individual LED diodes and the electronics to convert mains electricity to DC needed by the diodes.
To install a replacement LED tube light, remove the old fluorescent tube and install the new LED tube. Also remove the original starter and replace it with the one that will be supplied with the new LED tube. ( the new starter is actually just a piece of wire in a starter shaped container,since a starter is not needed for the LED tube but you have to have it since it completes the electrical circuit)
They are not generally not allowed, they have even higher carbs than white potato. But if you must eat sweet potato make sure that the portion of sweet potato is small, calculate the carbs in that portion and make sure you don’t go over your 20–30 gram limit for the day.
Here is the phase diagram for water.
When the pressure gets up to 100000 atmospheres and higher, the crystal structure of ice gets rearranged to give different forms of ice. Each form of ice has slightly different properties