Did Vikings Pass Through Oklahoma?
archaeology

Did Vikings Pass Through Oklahoma?

According to Amanda Garcia, director of Heavener Runestone Park, much of Farley's adult life was devoted to studying the stone. Visit numerous places while traveling in the USA and Egypt to study various landmarks. [more…]

What Does Mach Rate Mean?
Physics

What Does Mach Rate Mean?

Air molecules close to an aircraft agitate and move around as the aircraft travels through the atmosphere. Air density does not change as an airplane passes at low speed, usually less than 250 mph. However, more [more…]