We are saddened by the passing of Jim Lovell, commander of Apollo 13 and a four-time spaceflight veteran.
Lovell's life and work inspired millions. His courage under pressure helped forge our path to the Moon and beyond—a journey that continues today. https://t.co/AjT8qmxsZI
The flight that changed it all.
#OTD in 1903, the Wright Flyer became the first powered, heavier-than-air machine to achieve controlled, sustained flight with a pilot.
On 10/17/89, at 5:04 p.m, the Bay Area was rocked by the 6.9 Loma Prieta Earthquake. 63 lives were lost & thousands were injured. CHP & local heroes performed daring rescues, including the one captured in this Pulitzer-winning photo of the collapsed Cypress Structure. #LomaPrieta
The Fall/Autumnal Equinox is TODAY at 8:43:33 AM EDT. That's the time at which our Sun is directly over the Earth's equator, signaling the start of the Northern Hemisphere's astronomical fall. The length of daylight will continue to decrease each day until the Winter Solstice.
@NWSHanford How is the daily average calculated? Just the average of the high & low? Average of hourly readings? Or something more complex?
Also, has the method, or data set, used to calculate that average, changed at all as technology has progressed?