I am considering starting a pet sitting business which would require me to drive in all weather conditions. I am concerned about driving in the snowy and icy conditions which we get quite a bit of in my area. I currently drive a Ford Focus with all season tires that are *useless* in the snow. If you put high quality winter tires on a small sedan type vehicle like mine - would traction improve significantly? What about snow chains? Last year tying to drive my car in the snow was a disaster and I guess I'm wondering if there's a way to make it safer. I'm thinking about upgrading to a SUV with 4WD but then I will lose the benefit of having a fuel efficient vehicle like mine - and I will be driving a lot.
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I'd imagine that they had in mind that it was: Cold, dark, and needed to somewhat protect against radiation. so they made a suit that was suitable for everything.
Why do people hold colour TV as some technological yardstick? Before we had colour TV we had huge battleships, nuclear bombs, still and movie cameras, radio, supersonic flight, submarines, passenger aircraft What's so special about colour TV? Your whole question seems to be based on the flawed notion that we need to experience something directly to know what it is like. Tell me, if you run into a wooden fence and find it hurts, do you then need to run into a brick wall to see if that hurts too? More likely you extrapolate from what you already know to conclude that running into a brick wall will hurt and may damage you, so were you required to be in a situation where you may accidentally run into a brick wall you would want to wear some kind of protection. Would you then try out a whole range of different materials or would you extrapolate from what you already know of various materials and apply that to producing your own protection? They knew what the environment was like from satellites, high altitude aircraft, spectrometry or the light from the Moon, remote temperature measurements, etc. They knew what to make the spacecraft and suit out of because they knew what properties various materials had and could apply that knowledge to creating suitable equipment. It's a rather more sophisticated version of the same principle that allows me to know that I wouldn't make a kettle out of wax, use propane in a fire extinguisher, or make electrical wires from cotton thread.