1.
Who invented the ballpoint pen?

2.
In which decade was the first solid state integrated circuit demonstrated?

3.
What J. B. Dunlop invented?

4.
Which scientist discovered the radioactive element radium?

5.
When was barb wire patented?

6.
What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

8.
Where is the village of Branston, after which the famous pickle is named?

9.
Who invented Jet Engine?

10.
What invention caused many deaths while testing it?