Light can tell you a lot about what matter is doing. Visible light shows a surface. X-rays reveal hidden structure. Infrared ...
Until now, estimating how old a dinosaur was when it died has been a fairly simple process: Count up the growth rings in the ...
Most scope problems aren’t “bad glass.” They’re people guessing. Guessing what the numbers mean, guessing what the turrets do,... The post Riflescope basics explained easy (so you stop guessing) ...