Filed under: editorial, history, math, science —
Tags: agriculture, air conditioner, Alexander Graham Bell, antiseptics, Candice Millard, James Garfield, metal detector, Political Science, politics, Pythagorean theorem —
Tags: agriculture, air conditioner, Alexander Graham Bell, antiseptics, Candice Millard, James Garfield, metal detector, Political Science, politics, Pythagorean theorem —
Filed under: gps, Raspberry Pi, robotics —
Tags: GPS, metal detector, pi day, raspberry pi, robotics —
Tags: GPS, metal detector, pi day, raspberry pi, robotics —