Cat-like 'hearing' with device tens of trillions times smaller than human eardrum

Case Western Reserve University researchers achieve cat-like 'hearing' with device 10,000,000,000,000 times smaller than human eardrum. Researchers at Case Western Reserve University are developing atomically thin "drumheads" able to receive and transmit signals across a radio frequency range far greater than what we can hear with the human ear. But the drumhead is tens of trillions times (10 followed by 13 zeros) smaller in volume and 100,000 times thinner than the human eardrum.