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wig-wag signal

Today our volunteers Lee and Nick got to work on restoring the old wig-wag level crossing signal on display at the Railway Museum; an early 20th century...

FacebookNewport Railway Museum已浏览 1719 次2015年11月29日

Garrett Morgan Gas Mask

Meet Garrett Morgan, Inventor of The Gas Mask And The Traffic Signal.

Meet Garrett Morgan, Inventor of The Gas Mask And The Traffic

blackculturenews.com

2020年5月8日

How a Kentucky inventor found fame through tragedy

How a Kentucky inventor found fame through tragedy

whas11.comRob Harris

2021年12月2日

Meet Garrett Morgan, the inventor of the gas mask and the modern traffic light

Meet Garrett Morgan, the inventor of the gas mask and the modern

NEW YORK POSTFox News

2022年7月15日

热门视频

Can you guess the flag signal being... - B&O Railroad Museum

Can you guess the flag signal being... - B&O Railroad Museum

FacebookB&O Railroad Museum

已浏览 302 次2020年1月30日

Digitization of traffic safety films from the 1930s and 1950s

Digitization of traffic safety films from the 1930s and 1950s

FacebookCleveland Police

已浏览 795 次2019年8月23日

Talking Flags: The United States Army Signal Corps at Gettyaburg

Talking Flags: The United States Army Signal Corps at

FacebookSeminary Ridge

已浏览 1439 次2020年4月21日

Garrett Morgan Traffic Signal

Garrett Morgan, the Prolific Inventor Behind the 3-Phase Traffic Signal

Garrett Morgan, the Prolific Inventor Behind the 3-Phase Traffic

mentalfloss.com

2016年2月18日

Saves The Day: How Garrett Morgan Invented The Traffic Light Book Activities

Saves The Day: How Garrett Morgan Invented The Traffic

teacherspayteachers.com

已浏览 5 次2023年1月30日

Popular Science Celebrates Garrett Morgan

Popular Science Celebrates Garrett Morgan

FacebookPopular Science

已浏览 502.4万次2016年2月19日