When I was writing for children, I was writing genre fiction. It was like making a good chair. It needed four legs of the same length, it had to be the right height and it had to be comfortable. ↗
School divides life into two segments, which are increasingly of comparable length. As much as anything else, schooling implies custodial care for persons who are declared undesirable elsewhere by the simple fact that a school has been built to serve them. ↗
There were scenes that just for length purposes, and knowing that the attention span of kids is not great, don't make it much longer than about 90 minutes. ↗
The length of exposure (one minute in sunlight) is still too long for the portrait. It was fifteen minutes when I first began my work. Progress may continue. ↗
In general, the objects in the universe that are very high-energy objects, or the processes that are high-energy processes, will radiate more in the short wavelength range towards the gamma rays or the x-rays. ↗
This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured. ↗
