Sure it's been posted already but anyway
Johnson & Johnson: 'Kids Shouldn’t Get A F*cking [COVID] Vaccine;' There are "Unknown Repercussions"
I just saw an article on my phone's news feed earlier about the smallest microchip with wings
23 SEPTEMBER 2021
This Microchip With Wings Is The Smallest Flying Structure Humans Have Ever Built
Now, perhaps more than ever, engineers and scientists have been taking inspiration from nature when developing new technologies. This is also true for the smallest flying structure humans have built to date.
Inspired by the way trees like maples disperse their seeds using little more than a stiff breeze, researchers developed a range of tiny flying microchips, the smallest one hardly bigger than a grain of sand.
This flying microchip or 'microflier' catches wind and spins like a helicopter towards the ground.
The microfliers, designed by a team at Northwestern University in Illinois, can be packed with ultra-miniaturized technology, including sensors, power sources, antennas for wireless communication, and even embedded memory for data storage.
"Our goal was to add winged flight to small-scale electronic systems, with the idea that these capabilities would allow us to distribute highly functional, miniaturized electronic devices to sense the environment for contamination monitoring, population surveillance or disease tracking," says Northwestern's John A. Rogers, who led the development of the new device.
The team of engineers wanted to design devices that would stay in the air for as long as possible, allowing them to maximize the collection of relevant data.
When the microflier falls through the air, its wings interact with the air to create a slow, stable rotational motion.
https://www.sciencealert.com/the-smallest-flying-device-ever-made-by-humans-is-like-a-grain-of-sand
My phone's news feed is rather slow at time I'll get stuff from a week ago