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TIL the saxophone is considered a woodwind instrument and not a brass instrument even though it is made of brass. Musical instruments are not actually classified based on what they are made of, but how sounds are produced using them.

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ZpYPY TIL about uranium glassware, where small samples of uranium were melted into glass before forming to create a wider range of colors. This practice stopped in the 40s and pieces now are highly sought by collectors.
QNP9p TIL about Seven Magic Mountains, a large-scale desert artwork in Nevada. Created by the Swiss artist Ugo Rondinone, it consists of seven fluorescently-painted totems of large, car-size stones stacked 32 feet (9.8 m) high.
rRoXe TIL Windsocks are calibrated to visually show wind speed as well as wind direction. They are designed such that each inflated red/white stripe indicates a 3 knot increase in wind speed to a maximum of 15 knots.
l7oG1 TIL that overuse of nitrous oxide (laughing gas) can cause spinal cord injury by inactivating vitamin B12. Numbness, weakness, and even sexual dysfunction are common symptoms. Taking B12 preventatively before nitrous use is ineffective as no matter how much B12 is present, it is all ‘turned off’.
66wZ TIL The book “Toons That Teach”, a text used by youth groups to teach teenagers about spirituality, recommends the Futurama episode, “Godfellas” in a lesson teaching about “Faith, God’s Will, [and] Image of God”.