Product Description

Kit includes everything you need for 10 exciting projects related to radios, phones, and telecommunications. Construct a crystal radio and telegraph machine; send secret messages using Morse Code; make a megaphone, telephone and sound speaker and more!

Product Details

• Amazon Sales Rank: #82812 in Toys & Games
• Brand: Vintage Sports Cards
• Model: 25020
• Released on: 2006-09-08
• Dimensions: 11.80" h x 9.60" w x 1.60" l, 1.00 pounds

Features

• Science Project Kit For Kids, Hands on Experiments Ages 7+
• Step by Step Illustrations, many fun projects, historical tidbits
• Build Radios, Phones and Telecummuications
• Discover how sound travels, construst a crystal radio and more
• Materials included except common household items. Great Science Fun!!

From the Manufacturer
Can you imagine life without sound? People and animals use various forms of sound to communicate their thoughts. This may be done face-to-face or with a telephone. You will learn how sound and sound waves travel through water, air and space. Discover how to communicate with astronauts or aliens in space where sound can not be heard. With this kit you will be making some of the world's greatest inventions leading to the modern telecommunication era. Never has a book about SOUND AND SOUND WAVES made learning about science so much fun!

Customer Reviews

wrong parts...
This kit had wrong parts enclosed - a mini speaker instead of a buzzer. When the "telegraph" and "burglar alarm" projects were built, no buzz can be heard - only an almost inaudible "scratching" sound if the contacts are moved around - making these two projects basically useless.

I emailed the publisher, Brightspot, who responded very quickly (which is good), didn't offer a real solution (which is not good):

"The speakers that were enclosed in the kit give a static sound or a humming sound. We provided these to give the child a concept of how the project work and the science behind the project. I'm afraid we don't have an actual buzzer at the moment. I apologies and sincerely hope the current speakers provide the basis of how things work."

They seem to be aware of the problem, so I'm surprised that they wouldn't obtain some appropriate buzzer parts to remedy this problem for the many people that are likely to be affected. Otherwise the product is well crafted, educational, and reasonably engaging.