![Simplified Signs: A Manual Sign-Communication System for Special. Volume 2 - 11. The Simplified Sign System Lexicon - Open Book Publishers Simplified Signs: A Manual Sign-Communication System for Special. Volume 2 - 11. The Simplified Sign System Lexicon - Open Book Publishers](https://static.openedition.org/covers/OB/obp/14627/14627-225x270.jpg)
Simplified Signs: A Manual Sign-Communication System for Special. Volume 2 - 11. The Simplified Sign System Lexicon - Open Book Publishers
![TIL it's possible to hallucinate with only a ping pong ball, a red light, and a radio. : r/todayilearned TIL it's possible to hallucinate with only a ping pong ball, a red light, and a radio. : r/todayilearned](https://external-preview.redd.it/wTzD4G77Xn72H7p-UnB0SNw9rPWgq7UIg6qTc6LVczU.jpg?auto=webp&s=5fd8cd904fb40d2224b3550d5734708f6f439dae)
TIL it's possible to hallucinate with only a ping pong ball, a red light, and a radio. : r/todayilearned
![If you tape two halves of a ping pong ball to your eyes, and stare at a red light while listening to static, you will have complex and vivid hallucinations. - ) If you tape two halves of a ping pong ball to your eyes, and stare at a red light while listening to static, you will have complex and vivid hallucinations. - )](https://imageproxy.ifunny.co/crop:x-20,resize:640x,quality:90x75/images/e187940e8aae2d1d8e6f9d3bd317aa3c3df67a187975dea051989071a02cafe5_1.jpg)
If you tape two halves of a ping pong ball to your eyes, and stare at a red light while listening to static, you will have complex and vivid hallucinations. - )
![If you play radio static, cut a ping- pong ball in half, tape the halves over your eyes and lie down, you'll start hallucinating. - ) If you play radio static, cut a ping- pong ball in half, tape the halves over your eyes and lie down, you'll start hallucinating. - )](https://imageproxy.ifunny.co/crop:x-20,resize:640x,quality:90x75/images/00caeb34b2fc63145fc56db14c3cd69e1d253af9f0ab91ec5fae17c901b21311_1.jpg)
If you play radio static, cut a ping- pong ball in half, tape the halves over your eyes and lie down, you'll start hallucinating. - )
![Differential Diagnosis of Abnormal Symptoms and Signs (Section 1) - Neurologic Differential Diagnosis Differential Diagnosis of Abnormal Symptoms and Signs (Section 1) - Neurologic Differential Diagnosis](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:76035:20160618001757147-0904:01455tbl5_8.png?pub-status=live)
Differential Diagnosis of Abnormal Symptoms and Signs (Section 1) - Neurologic Differential Diagnosis
![Ben Wingrove on Twitter: "@DoctorKarl ping pong balls over eyes + static noise + red light + 25 minutes = no hallucinations for me #experiment http://t.co/Ys9ite4jN4" / Twitter Ben Wingrove on Twitter: "@DoctorKarl ping pong balls over eyes + static noise + red light + 25 minutes = no hallucinations for me #experiment http://t.co/Ys9ite4jN4" / Twitter](https://pbs.twimg.com/media/BOJF2ApCUAA_V2J.jpg)