You probably think that because a fly “sees” your hand coming to swat it that a flies eyesight is really good. In fact the opposite is the truth. Compare to what would be prefect vision in a human (20/20 vision) a fly has only 20/1200 vision. It does have the benefit though of having around 4,000 lenses or ommatidia per eye. Each ommatidium or “lens” performs independently so is like an eye in its own right. Every ommatidium is like a long cone with the lens on the tip and bearing its own distinct nerve fibre which connects to the flies main optic nerve. A human eye will adapt to differing light and focus on near and far object using the muscles of the eye to shorten and lengthen the eyes focal length and to open and close the iris. Flies cannot do this and their thousands of lenses are really like a mosaic or the dots you will see if you take a magnifying glass and look at a news paper. As you move further from the dots the ability to distinguish what you are looking at improves and it doesn’t look like dots anymore.
This project is a simulation of fly’s eye, how fly see the world through the lenses.
Bats are not blind; in fact they can see almost as well as humans. But to fly around and hunt for insects in the dark, they use a remarkable high frequency system called echolocation.
Echolocation works in a similar way to sonar. Bats make calls as they fly and listen to the returning echoes to build up a sonic map of their surroundings. The bat can tell how far away something is by how long it takes the sounds to return to them.
I was trying to make people feel how bat listen, I would like to do something that people can try on rather than a sound track, so I made a contact mic and tied to a stick, I made it almost twice length than human’s arm, so when people hold the stick, they can touch the thing within half a meter. The other side can be plug in to a speaker, when the contact mic touched anything, the sound will come out from the speaker. So it is kind of like the echo that bat heard when in the dark, when there is something in front of you, the sound will bounce back to let you know.
Whiskers help her figure out where she’ll fit
The whiskers on your cat’s nose are generally about as long as your cat is wide, so they help her to figure out how wide an opening is and whether she’ll fit through it. Some people say that if cats gain weight, their whiskers get longer; I haven’t seen enough evidence to know whether this is true.
This hat is for people to wear and like a whisker on head, which is inspired by cats’ whisker, when you wear the hat on, you can feel if you can go though the door or not.
I have researched that butterfly, mosquito and bees can taste by there leg, so this is a thought experiment based on that. It is a extend leg that people can step on, and there is a sense element on the bottom, and the taste can transform through the element to a helmet, so if people wear the helmet, the brain can tell the taste from the bottom part.
Dolphins are an interesting character and lack olfactory receptors (interestingly enough, the olfactory tract and bulb only exist in the fetal stage of development) therefore, it is true that dolphins do not have a sense of smell.