For this shot, Sailer clamped a piece of chalk into a drill press and drew rings using a felt pen to add contrast and interest.
He takes the pictures in a dark room positioned about 20cm from the target. The camera is set at a one-second delay giving the photographer enough time to click the camera shutter and fire the gun. The 17,000 volt flash, a homemade set up built on the principle of a Harold Edgerton design, is triggered as the 200 meters a second riffle pellet passes through a laser beam.
22,000 people agreed to clean toilets for WiFi because they did not read the terms.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.