Decades: 1210s 1220s 1230s 1240s 1250s - 1260s - 1270s 1280s 1290s 1300s 1310s
Years: 1257 1258 1259 1260 1261 - 1262 - 1263 1264 1265 1266 1267
Deaths
... the axis of a spinning gyroscope will resist a force applied to it and will start rotating perpendicular to the force applied. This is why spinning gyro tops will not ...