On one end of the system, a computer translates the message into a series of bits, 1s and 0s. Then it sends pulses of vinegar or glass cleaner down a series of tubes. Vinegar is an acid, while glass cleaner is a base. At the other end, a detector records the changing pH and a second computer decodes the message.
Researchers at Stanford University have built a device that encodes messages in the same 1s and 0s that our phones and other devices do. But instead of sending them with electrical or radio signals, theirs uses vinegar and glass cleaner.
2) Always label the contents of your cleaner bottles. Label it clearly in big letters with what is in bottle. "Vinegar Glass Cleaner," or "Rubbing Alcohol and Vinegar Glass Cleaner," are good labels. It is also wise to add the date when you mixed the ingredients. If you aren't getting good results, that date may tell you why.