The conceptual origin of zero has eluded archaeologists and historians. An updated analysis of an ancient Indian manuscript is shedding new light on this longstanding mystery, showing that the symbol that would eventually evolve into the number zero emerged at least 500 years earlier than previously thought.
A distributor has found a way to burn organic labels onto produce to replace stickers or plastic wrapping. An organic label is tattooed onto fruits & vegetables by removing pigment from the skin using laser technology. The method dubbed natural branding doesn’t affect eating quality or shelf life.
Challenges in cultivating microorganisms have limited the phylogenetic diversity of currently available microbial genomes. This is being addressed by advances in sequencing throughput and computational techniques that allow for the cultivation-independent recovery of genomes from metagenomes.
Graphing calculators are still a necessary and expensive accessory for math and science students in high school and college. The dominant models from Texas Instruments and Casio can be complex and expensive. Now, an open-source calculator called Numworks is taking them on.
The source is a dwarf galaxy 3 billion light years away. A team of researchers from the Breakthrough Listen initiative has detected 15 new fast radio bursts, flashes of energy that we pick up as radio chirps. All 15 of these signals came from a single source — FRB 121102, the only FRB to ever repeat .
Hello! In this video I'm making laser engraver CNC machine from two old DVD drives and Arduino nano. If you have an old DVD or CD drive and want to have some fun with laser, this is the project for you. You can do Wood Sketching by laser engraving.