The moon fotographed with a 300mm lense
A simple 300mm lense is enough to see a log of details of the moon at a distance of more than 300000km.
The moon, always a nice foto
Monday, 7.09.2009A simple 300mm lense is enough to see a log of details of the moon at a distance of more than 300000km.
How fast is a rain drop falling?
Saturday, 5.09.2009
How fast is a rain drop falling?
The foto was exposed with 1/500s. The hight of the foto is about 20cm. This means that the velocity is about 25m/s. The rule: velocity in m/s is 6 times the diameter in mm seems to fit.
Free fall illuminated with neon light
Sunday, 30.08.2009
Freier Fall
The foto was taken with 1/3s exposure. As the neon light flickers at a frequency of 100Hz on sees the falling white object with interruptions.
Interference at a spider net
Sunday, 16.08.2009
Interference at the thin threads of the spider net
Interference at the thin threads of the spider net.
