A recent study that shows how cows can use tools recalls the controversial 1982 cartoon from "The Far Side" comic strip called "Cow Tools." In case you haven't heard, cows are using tools now. Well, ...

Ellipses and cylinders are foundational to drawing forms in perspective. This short shares a practical method to improve accuracy, consistency, and confidence when drawing rounded forms—making complex ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Abstract: When seismic waves propagate through horizontal transversely isotropic (HTI) media, the variation of acoustic impedance with azimuth can effectively reflect the fracture density and ...

Abstract: This paper presents a novel positioning method based on ultra-low-frequency magnetic field-based positioning systems (ULF-MPSs) in non-line-of-sight (NLOS) environments. The system for easy ...

Concept design for a rectangular space telescope, modeled after the Diffractive Interfero Coronagraph Exoplanet Resolver (DICER), a notional infrared space observatory, and the James Webb Space ...

We may receive a commission on purchases made from links. USB charging is everywhere, and if you have a newly built apartment or home, you may have a USB wall socket. It makes life convenient for ...

This proposal builds upon the discussion in Issue #7422, which was closed based on concerns from maintainers. This proposal addresses those concerns and provides updated context for why this ...

Drawing a hexagon in isometric view is a useful technique in technical drawing, engineering, and 3D design. Isometric drawings give a three-dimensional appearance using 30-degree angles, and creating ...