Update: Jonas Salk said: If all the insects were to disappear from the earth, within 50 years all life on earth would end. If all human beings disappeared from the earth, within 50 years all forms of life would flourish..
Old Lamplighter was written by Tobias, Charles/simon, Nat. Old Lamplighter was written by Tobias, Charles/simon, Nat.
A flux of 1,000 lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of 1,000 lux. Steps: To convert from Lux (lux) to Lumen (lm) insert the value in lux, distance between the light source and work surface as well as the viewangle of the source lamp. Click on Lux to Lumen .