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Swiss technology-transfer company CSEM created the final
prototype for their Pulsear device this year. A tiny unit embedded in
a regular earphone uses infrared signals to see how fast your heart is
beating. The result is displayed directly on your iPhone. With a grant
from the ESA Technology Transfer Programme’s ‘Transfer Demonstrator’
initiative, CSEM created the prototype based on technology developed
for ESA’s Long Term Medical Survey system.