This chair is called the Stokke Gravity™ balans®. From the website:
From a comfortable working position to a reclined position and a feeling of almost weightless. The sloping seat allows wider space betwe...
https://www.neatorama.com/2006/11/29/gravity-chair/
This ladybug is trying to fly, but she's trapped by the ultrasound field in which she has been, yes, levitated: [Materials physicist Wenjun] Xie and his colleagues employed an ultrasound emitter and reflect...
https://www.neatorama.com/2006/11/29/elevate-me/
Sometimes the best inventions are so obvious that you'd wonder why it wasn't invented before. Here's the HurriQuake nail, invented by civil engineer Ed "Dr. nail" Sutt after witnessing the devastating effect of...
https://www.neatorama.com/2006/11/29/hurriquake-nail/