![Professors Auguste Piccard and his brother twin Jean. Auguste was the first human to reach the stratosphere. Jean's invented clustered high-altitude balloons. Their inventions were are used in balloon flight, aircraft, and Professors Auguste Piccard and his brother twin Jean. Auguste was the first human to reach the stratosphere. Jean's invented clustered high-altitude balloons. Their inventions were are used in balloon flight, aircraft, and](https://c8.alamy.com/comp/F2AXT2/professors-auguste-piccard-and-his-brother-twin-jean-auguste-was-the-F2AXT2.jpg)
Professors Auguste Piccard and his brother twin Jean. Auguste was the first human to reach the stratosphere. Jean's invented clustered high-altitude balloons. Their inventions were are used in balloon flight, aircraft, and
![Jean Piccard, Swiss-American chemist and balloonist - Stock Image - C052/5415 - Science Photo Library Jean Piccard, Swiss-American chemist and balloonist - Stock Image - C052/5415 - Science Photo Library](https://media.sciencephoto.com/c0/52/54/15/c0525415-800px-wm.jpg)
Jean Piccard, Swiss-American chemist and balloonist - Stock Image - C052/5415 - Science Photo Library
![USA Jean Piccard & Lieutenant Settle Stratosphere Flight Aviation old Photo 1933 by NEWS SERVICE (Misc): Photograph | Bits of Our Past Ltd USA Jean Piccard & Lieutenant Settle Stratosphere Flight Aviation old Photo 1933 by NEWS SERVICE (Misc): Photograph | Bits of Our Past Ltd](https://pictures.abebooks.com/inventory/md/md30195068171.jpg)