| ID | 011816 |
| Call Number | 500/DID |
| Title Proper | I didn't know that |
| Language | ENG |
| Author | National Geographic Channel |
| Publication | Great Britain, National Geographic, 2007. |
| Description | Black Spine |
| Series | National Geographic |
| Note | Richard and Jonny delve into the world of common products of daily usage and slice open the technology of testing them to understand the science behind them. |
| Price. Qualification | Rs.384(1 DVD) |
| Classification Number | 500 |
| Key Words | Technology ; Science ; Science - Experiments |