Waiting for the food to come?
Hear an audio activity
contact and comments
Find out the latest Science News
kudos and connections
About do science
Do Science services
The Do Science store


To get a Do Science logo product, click here.


Send a t-shirt with an activity on the back
(Condiment Diver activity is on back).


Return to
The Archive List

Do you have a comment or response to this activity, submit it to the Do Science bulletin board.


More science activities can be found here:
while you're waiting for the food to come
Great for Science Fair projects!

While You're Waiting for the Food to Come
by Eric Muller, Illustrated by Eldon Doty

Hardcover
version

Paperback
version
To order or find out more about this book,
click on the book cover above or on either cover version.
Go to the Do Science Store

 

Make a wineglass whine.

Ingredients:

- A wine glass or two

- Some water (maybe some wine)

 

The Recipe:

1) Moisten your finger by dipping it into some water.

2) Lightly touch the rim of the wineglass and slowly draw your finger around and around. You should start to hear a sound.

If no sound emerges, it might be because your fingertip is too slippery from body oils. To solve this problem, dip your finger in some wine instead of water. This helps cut the oil.

3) If you do get a sound, try filling the glass (or another glass) with differing amounts of water. See what other sounds you can get to emerge.

Food for Thought:

The glass rings for the same reason a violin makes a noise - stick and slip. To play, a violinist drags a bow across the strings. As the bow moves, it alternatively sticks and slips on the strings. This makes the strings vibrate, which in-turn makes the air vibrate and this is what we hear as sound.

On the wineglass, your finger is like a bow and the glass is like a string. Your finger sticks and slips as it is dragged around the glass's rim.

Copyright 1996 Eric Muller
While You're Waiting for the Food to Come"

Original copyright of While You're Waiting for the Food to Come 1995 Eric Muller


Activities | Waiting for Some Food? | Hear an Audio Activity | Contact & Comments | Do News | Kudos & Connections
About Do Science | Educational Resources & Presentation Services | The Do Science Store
Search | Home

Copyright Do Science® 1999