Korner intelligent door lock system
German inventors say Korner is a simple, family-friendly home security system, because it costs less than $ 100 at no extra cost per month.
Latest update
- Why are there no male queen bees?
- The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
- Mystery of dozens of giant circular structures at the bottom of Lake Michigan
- US ship becomes world's largest artificial reef
- Wreckage of mysterious missing bomber found after 80 years
- Surprised to know the identity of the Russian missile debris 'hunter'
- Australia releases chemical composition data of nearly 1 million stars
- NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away