Paulus Aulus Pompéia, Brazilian physicist and engineer (Sorocaba, São Paulo State 01 October 1911 – 10 February 1993)

ACHIEVEMENTS

Discovered penetrating showers in cosmic rays with Wataghin and Santos

With G. Wataghin & M.D. S. Santos. Simultaneous penetrating particles in the cosmic radiation I. Physical Review 57:61, 1940.

With G. Wataghin & M.D. S. Santos. Simultaneous penetrating particles in the cosmic radiation. II. Physical review 57:339, 1940.  

Proposed criteria for distribution problems related to statistical physics

Distribution problems related to statistical physics. An. Acad. Bras. Cien. 27(2):123-36, 1955 

Introduced new criteria of randomness

With A. de Moraes. Time distribution analysis related to Statistical Physics. Anais da Acad. Bras. Ciencias 33:13-23, 1961.

Developed with Souza Santos a new kind of ultrasonic sonar for detecting submarines employing pre-oriented ferromagnetic crystals  

With Souza Santos developed a special thermostat that works on the gasoline dilation for controlling the temperature of cooling crystals

With Souza Santos developed portable radios for jeeps and military trucks 

Developed a pulse transmission system in high-resolution coincidence circuits

With N. Hilbery. A cathode following amplifier for pulse transmission in high resolving time coincidence circuits. Symposium on Cosmic Rays, Acad. Bras. Ciencias, 157-9, 1943.  

Constructed a counter outfit to measure the lifetime of the mesotron

With E. O. Wollan. An electrical timing circuit to control a cloud chamber. Symposium on Cosmic Rays, Acad. Bras. Ciencias, 161-2, 1943.   

Developed an efficient method for determining initial velocity of projectiles  and a device suited to this purpose (with an accuracy of 0,4%)