sound mirrors

Before Radar, These Giant Concrete “Sound Mirrors” Were Used To Detect Incoming Enemy Aircraft

Before the invention of radars, acoustic mirrors were used in Great Britain as early warning devices. The mirrors were built to detect incoming enemies by the sound of their engines. Source 4.5-metre-high (14 ft 9 in) WW1...

 
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California’s 1000-year-old Pioneer Cabin Tree Has Fallen Over

The Pioneer Cabin tree was one of several “tunnel trees” that had been carved out and served as human amusements. The tree’s exact age and height were not immediately available, but sequoias can measure their ages...

 
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Photos of Children Before Child Labor Laws Were Passed, 1908 – 1924

In 1908, sociologist and photographer Lewis Hine traveled to the town of Eastport, ME after he was hired by the US National Committee of Child Labour, to explore the difficult conditions in which children toiled before the...

 
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Cost of Living Throughout the Years, 1924 – 1999

Cost of living is the amount of money needed to sustain a certain level of living, including basic expenses such as housing, food, taxes and health care. Here’s a look on how much the cost of living has changed throughout...

 
eyes-feat

Ten Assorted Vintage Artificial Eyes from 1870 – 1920

During the 19th C., as more doctors started to specialise in eye disease alone, increasingly complicated operations were devised. The introduction of anaesthesia in 1846 and adoption of antiseptic techniques by the 1880s,...

 
boxing-feat

Vintage Snapshots of Boxers From the Early 20th Century

Boxing has been included in the Olympic Games program since 1904. For centuries people used their fists to resolve disputes before someone thought of organizing such fights as entertainment. The competition is divided into...

 
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This Ingenious Car From 1923 Turns Into a Boat

In 1921, John A. Cowan of Kansas City, Mo., has patented a car roof that slips off and can be carried right into the water, turning into a lightweight flat-bottomed boat. There’s a risk of damaging the interior of the...

 
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Vintage Snapshots of Female Skiers from Between 1920s and 1930s

Skiing, one of indispensable sports of winter. But until the mid-19th century it was primarily used for transport, and since then has become a recreation and sport. Here are some vintage photos of women skiing for either...

 
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Black and White Photos Show Winter in Boston From Between the 1910s and 1930s

Bostonians know how winter can be both magical and miserable. Here’s a selection of 33 photographs taken by Leslie Jones, staff photographer for the Boston Herald-Traveler, documenting daily life in Boston from between...

 
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Downtown Christmas Decorations in the 1920s – 1960s

Let’s stroll back into the past through this collection of vintage photos showing beautiful street scenes of different cities during Christmas time! Photo of downtown Des Moines, Iowa during Christmas, 1931. The city...

 
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