https://www.theguardian.com/us-news/2020/jun/06/golden-gate-bridge-san-francisco-sings Paolo Cosulich-Schwartz, a Golden Gate Bridge, Highway & Transportation District spokesperson, said the sounds stemmed from long-planned wind retrofitting.“The new musical tones coming from the bridge are a known and inevitable phenomenon that stem from our wind retrofit project during very high winds. The wind retrofit project is designed to make the Bridge more aerodynamic under high wind conditions and is necessary to ensure the safety and structural integrity of the Bridge for generations to come,” Cosulich-Schwartz said.“We knew going into the handrail replacement that the bridge would sing during exceptionally high winds from the west, as we saw yesterday. We are pleased to see the new railing is allowing wind to flow more smoothly across the bridge
"How many people do you think there are in that photograph?"Bad headline!That's not what they were asked/answered. It was hinted at by "look at that crowd", but it's a misrepresentation that they were asked how many were in it. And the question they were asked relied upon assumptions of things that were not in the picture.
Audio recording via cup or by the vibration sensor attached to the cup? It's the vibration sensor that makes it a microphone. Admittedly the enclosure makes it a better one - but it's still dependent upon the vibration sensor in a very fundamental way. There are much better "hacks" around. You can make a speaker out of a coin for example.
Anamorphic illusion logic:"it'll look really cool from one angle and distance providing people only have one eye"What about the rest of the angles and distances and number of eyes?"...."
There are theories that the gravitational anomalies that suggest "planet nine" could be explained by a roughly 5cm wide black hole. Mind you there is another current one saying it could be "a large number" of asteroids and such adding up to the effect of a small planet. Curiously that one was developed by a researcher using techniques she uses to calculate the influence of things being gobbled by a black hole on each other. So it's all about black holes really.
https://www.bbc.com/worklife/article/20170728-monopoly-was-invented-to-demonstrate-the-evils-of-capitalism