Wasn't the quote for the b2 much more reasonable, but after Congress ordered the air force to reduce the number (in the hope of reducing the budget), the count reduced, but the price remained the same, making each aircraft more expensive?
For those who don't know, the green end of the spectrum has more power than the red end. It can push electrons, make chemistry happen, and damage cells.
Red light is so low energy you can use it as a safe light when working with black and white film
The colour of light that can give you a tan or turn cholesterol to vitamin D is ultra violet, further to the green end than green or even blue
And the green end of the spectrum is the highest energy end. Our solar panels out perform plants in energy production partly because they can tolerate much, much more of the higher energy frequencies
Especially when the mistakes hurt. I was a kid in the '80s when this was practiced.
All the stuff I played on now has softfall padding under it, the giant slide has had a dirt bill built up under it so kids can't fall off the ladder; the high up stuff was removed
Me and my friends would climb to the high cubby house and feel very daring. I think it was 10m up. There were three of them with the lowest being maybe 5m up - parents couldn't reach it.
We were not daring enough to try the Tarzan swing - a circle of tiered seats rising in the arc of the rope that hung above the centre, so you could take the rope to any point on the tiers and swing from there. I think there was a knot in the bottom of the rope, but the older boys swung with their feet loose, hanging on Tarzan style. That was the only one they pulled out during the '80s. Everything else survived to the late '90s
The five eyes group all have rules against spying on their own citizens. So they each spy on each other for each other