A sun recorder is a weather instrument that records the number of minutes or hours per day in which the sun's rays are present to the degree capable of burning through a paper recording strip, when magnified through a glass sphere.
thomas jefferson
Australia
The black box was invented in Australia by David Warren in 1953 and were produced in 1957.
The black box flight recorder became mandatory after a mid air collision over the Grand Canyon in 1956. There were no survivors and no one knew what actually happened.
Invented in 1953 by Australian Dr David Warren, the modern day black box recorder was used to recorded pre-crash conversation. The product was in production by 1957.
here comes the sun
asks the sun I guess.........jus kiddin
The glass ball focuses the sun's rays on a card inside of it which measures the sunshine
The glass ball focuses the sun's rays on a card inside of it which measures the sunshine
In your pocket, in your hat, in you sun glasses, hold it behind your back, etc.
Water
You can record the sun quite easily on a domestic video recorder, you just record an empty channel. The hash you get on the screen is in fact the energy of the solar eruptions from the surface of the sun (sun spots, flares etc.) John Spencer G0UNE.
You will need recorder grease for a wooden recorder, and recorder cream for a resin/plastic recorder. On either one, use your finger to smear the grease on the joints of the recorder. On a wooden recorder, the joint will be made of cork or string.
Recorder level
A sunshine recorder! A paper chart is marked with the hours. The magnifying glass is usually spherical so it and the chart don't move. When the sun shines it burns a line on the chart. The most common kind is called a Campbell-Stokes recorder. See a picture at the link below.
It depends on what type of recorder you have but, normally there are three parts to a recorder.
form_title= DVD Recorder form_header= Record movies with a DVD recorder. What is your budget for a DVD recorder?*= _ [50] Do you want a blu-ray recorder?*= () Yes () No What do you want to record?*= _ [50]