G8MNY  > TECH     03.04.25 09:00z 40 Lines 1072 Bytes #104 (0) @ WW
BID : 29450_GB7CIP
Read: GUEST
Subj: Light Levels
Path: ED1ZAC<ED1ZAC<GB7CIP
Sent: 250403/0848Z @:GB7CIP.#32.GBR.EURO #:29450 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : TECH@WW

This is old data but still useful.                    (updated Mar 04)

    WHERE                               LUX
Clear Night Full Moon                   0.3
Candle @ 1M                               1
Side Roads                                4
Main Roads                               16
Staircases, Railway Platforms.        30-60
Secondary Rooms, Basements, Halls.      120
Living Rooms & Offices.                 250
Classrooms, Shops & Workshops.          500
Drawing Office, Precision Workshops.   1000
Winters Day, Overcast Sky.          900-2000
Winters Day, Clear Sky.            up to 9000
Summers Day in June, overcast sky. 4000-20,000
Summers Day in June, Sunshine.  Approx 100,000

1 Lux = 1 Lumen over 1M
1 Lumen = 1 standard Candle over solid Steradian <.

 LIGHT   WAVELENGTH
COLOUR    nano M
Red        690
Orange     600
Yellow     560
Green      520
Cyan       490
Blue       450
Violet     415

Note: 300 nano M = 1 Peta Hz = 10^15Hz


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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