WATCH: The best public art is MORE than just art —it’s functional too. This smart, integrated art in a new project in central OSLO draws you in, supports place-making & way-finding, and reveals all the mid-block nooks & crannies that you might never find!
How Eratosthenes measured the size of Earth: the Cosmos episode where Carl Sagan explains how the ancient Greeks, using reason & math, figured out the Earth isn’t flat over 2,000 years ago
[📹 https://t.co/CJOZ52beD9]
[transcript: https://t.co/CP7SQeI7r9]
Invented by German physicist Heinrich Rubens in 1905, the Rubens tube graphically shows the relationship between sound waves and sound pressure, as a primitive oscilloscope
This is a demonstration with a trumpet
[read more: https://t.co/vS1cFflZ9U]
https://t.co/dAGj5owaJd
“If you picture the city of the future, think less of smart tech, flying cars and skyscrapers; more of cascading foliage, green roofs, rough meadows, and dense forest.
The tendency in the 21st century will be for cities to go greener, as a form of self defense if nothing else.”
From vast, glistening lakes to the smallest of streams, the Boreal Forest in Canada is home to more surface freshwater than any other ecosystem on the planet. Together, these waters nourish plants, animals, & communities – making the boreal truly a forest of blue. #ForestFacts
Bow-riding consists of dolphins positioning themselves in such a manner as to be lifted up and pushed forward by the circulating water generated to form a bow pressure wave of an advancing vessel.
[read more: https://t.co/wZYxWlk1ef]
https://t.co/G3GecnWqrd
'Why does challenging car dominance elicit such vitriol and outrage? Because when accustomed to privilege—as the automobile has been for decades—any shift towards equality feels like oppression.'
—@modacitylife
(📹by @RUVSjonvarp, Iceland)
“They cut speed limits, changed street design, removed space for cars…Now it appears that work is paying off. #Oslo & #Helsinki are reaping the rewards of committed action on making their roads safer, reducing pedestrian fatalities to zero last year.” https://t.co/EgPQSx1pRW
Working with local residents on their design and maintenance, Antwerp is piloting tuinstraten (“garden streets”) in five districts across the city.
They improve resiliency (to flooding and heat), liveability and sociability—making these spaces calmer, greener and more beautiful.