Humans have 5 very limited senses that help humans survive in the world. Although completely adequate for survival, human senses can only detect 1/1000th of the full spectrum. That means that over 99.9% of the world is invisible (non-sense) to humans. This is where science comes to our aid. Using scientific instruments, scientists are able to detect and verify what humans alone cannot.
Human senses:
Sight: 1mm-10km
Sound: 20Hz-20KHz
Smell: type, sensitivity
Taste: type, sensitivity
Touch: 1mm, 1deg
Time: 1sec to 1day
Location: on land
Scientific instruments:
million times smaller and million times farther
1000 times lower and 1000 times higher
1000 times the variety and 1000 times sensitive
1000 times the variety and 1000 times sensitive
1000 times finer and 1000 times as sensitive
million times shorter and million times longer
anywhere we can send instruments (space, oceans, underground)
To actually see what is invisible to the human eye, please watch this 2 min. trailer.