>>8292152 Search terms used"

"psychoacoustic" - $3.8 Million

"Sonoluminescence" - $1.8 Million

"corona discharge" - 2.8 Million

https://www.usaspending.gov/#/keyword_search/%22psychoacoustic%22

https://www.usaspending.gov/#/keyword_search/Sonoluminescence

https://www.usaspending.gov/#/keyword_search/%22corona%20discharge%22