to detect ultrasonic waves ,place a sensitive flame in its path. if it flickers it proves its existence.
IT DETECT IT BY ULTRA VIOLET RAYS.
Humans cannot detect electromagnetic waves outside of the visible light spectrum, such as ultraviolet light, infrared radiation, and radio waves. Additionally, humans cannot directly detect gamma rays and X-rays.
Yes, seismograph stations around the world can detect both P-waves and S-waves. P-waves are the fastest seismic waves and are typically detected first, followed by the slower S-waves. The ability of seismographs to detect these waves allows scientists to study and monitor earthquakes globally.
You can detect invisible electromagnetic waves using specialized equipment such as antennas or receivers that are designed to pick up specific frequencies of electromagnetic radiation. These devices can convert the waves into a form that is visible or audible to humans, allowing us to detect and measure the presence of electromagnetic waves.
A radio altimeter bounces radio waves off the ground to detect elevation.
infrared
Detect sound waves.
Sonar
They detect waves coming off of the closest stars
Different devices are used to detect different frequency ranges of electromagnetic waves. You simply can't use the same device to detect x-rays, than you would use to detect radio waves, for example.
RADAR
radar