Precision and accuracy

So many people don't understand that these are fundamentally different aspects.

-Precision is basically how many significant digits, or how many digits right of the radix point.
-Accuracy is how close the measurement is to a target value.

For example:

Dale's discus throw was measured PRECISELY at 36.821 meters.
Bob's discus throw was measured at around 50 meters, plus or minus 2 meters.

Since the target was 50 meters Bob's throw was more ACCURATE than Dales.

Maybe time should just be sub solar longitude

It's very easy to convert UTC time to sub solar longitude (longitude where the Sun is directly over)

0000hrs UTC the Sun is directly over the ante meridian (180deg lon)
1200hrs UTC the Sun is directly over the prime meridian (0deg lon)

Every 30 deg longitude is 2 hrs (hence every 90deg is 6 hrs)

Why not just denote time as sub solar longitude? One can easily compare local longitude with sub solar longitude to figure where the Sun will be located.

Universal time of day: should be the longitude of the sub solar point.
Time of year should be latitude of sub solar point.

Links
https://en.wikipedia.org/wiki/180th_meridian
https://en.wikipedia.org/wiki/Prime_meridian
https://en.wikipedia.org/wiki/Coordinated_Universal_Time

Fish eye lens would offer no distortion on spherical displays

Fish eye lens would offer no distortion on spherical displays, the problem is the lack of spherical displays! We're stuck with flat rectangular displays.

https://www.youtube.com/watch?v=7dtH6uKj-QI
https://www.youtube.com/watch?v=a2e9noEg1zg

Seasons shouldn't be 3 months

The Sun spends more time near tropics than it does near the equator. Maybe Winter/Summer should be 4 months, and Spring/Autumn 2 months.

https://rl.se/zenith-calendar

-Winter: From Oct24 to Feb17 (roughly 4 months) the Sun travels from -12deg to -23deg back to -12deg latitude
-Spring: From Feb17 to Apr20 (roughly 2 months) the Sun travels from -12deg to +12 latitude
-Summer: From Apr20 to Aug21 (roughly 4 months) the Sun travels from +12deg to +23deg back to +12deg latitude
-Autumn: From Aug21 to Oct24 (roughly 2 months) the Sun travels from +12deg to -12 latitude

Not only is Summer 4 months, but the Sun stays in the sky higher and for well over half the day.
Furthermore for most of the time the Sun is closer to 23deg than at 12 deg:
-1 month after the Sun passes the equator the sun is 1/2 way to the tropic line
-10 days after that the Sun is 2/3 the way to the tropic line
-10 days after that the Sun is 4/5 the way to the tropic line

Then for about the next 80 days the Sun stays 4/5 of the way to the tropic line! It does this 80 day stint 2 times a year, so for almost half a year!

Power and torque made simple

Power and torque, as with many topics, are simple to understand, if explained concisely.

Force is mass times acceleration. (translation)
Torque is force times arm distance. (rotation)
(note: at that arm distance Force = Torque)

Work is Force times displacement. (translation)
Work is Torque times displacement. (rotation)
(note: displacement along the circular path)

Power is Work divided by Time.

You can't always overpower something simply by ;increasing power', the force component of power has to exceed that of the load.

Microwave power density

Simply stating wattage of a microwave seems inadequate. Microwaves come in different sizes. A 1500 watt small microwave has a higher power density than does a 1500 watt large microwave. Size being the internal cooking space. They should be rated with say watts/cubic meter, to indicate how long it will take for the meal to cook.

Efficient traffic convoy system

Starting and stopping at stoplights is a waste of energy, also it takes time for long group of cars to accelerate once stopped at a stoplight.

What would be better is to bunch up vehicles into a convoy all following the nearest 'virtual pace car'. Cars just ahead of the virtual pace car would slow down to get closer to the pace car, while cars behind the virtual pace car would speed up to catch up.

Within limits of course, never go above the speed limit to catch up, rather simply slow down to the next virtual pace car behind them.

The virtual pace car would be synchronized with the stoplights; the lights turn green just as it approaches a light. The cars will be bunched together so it wouldn't have to stay green for long to get a bunch of cars through. This will let cross traffic enter more often.

The virtual pace car can simply take a form of signs that simply indicate whether you should slow down or speed up to catch up to the nearest virtual pace car. Brakes and energy will be saved, smooth driving the whole way!

https://en.wikipedia.org/wiki/Traffic_light_control_and_coordination
https://en.wikipedia.org/wiki/Green_wave Same as convoy idea
https://en.wikipedia.org/wiki/Speed_sign Same as pace car idea