BLOG ENTRY: Tom Vales Demo Summary

BLOG ENTRY: Tom Vales Lecture

Introduction

Tom Vales’s lecture covered a broad range of information that I had never been “exposed” (pun) to prior! From hearing about uses of nuclear energy, to specific forms of radiation that are very dangerous, I was excited to learn from him. Nuclear power is an issue I’ve been torn with for years, so this lecture provided with increased insight on the benefits and potential costs of this energy source.

Specific Facts Learned

First and foremost, Vales underscored some basic definitions in our discussion of radiation. A radioactive element is in constant decay and is unstable. Furthermore, he highlighted that it came in three forms: alpha (2 protons, 2 neutrons), beta (electron), and gamma (electromagnetic) rays. The radioactive elements seek to stabilize to lead, and their overall threat to the public can be measured through their half-lives.

Tools/Demonstration

Vales utilized his geiger counter to measure radioactivity. The following is a partial list of different objects he measured with his tools:

• Vaseline glass
• Fiestaware products
• Flower cases
• Phone pole cover
• Arium pills
• Uranium ore

These are just some of the things we got to see be measured. Further, he demonstrated the radioactivity with a UV flashlight. I had never known that so many household items gave off radiation decades ago. From thorium to radium, these manufacturers truly posed a threat to the general public. I’m certainly more grateful for government agencies today that protect against abusive consumer practices.

Conclusion

Vales’s demonstration was a great blend between providing the basic information needed to understand radiation and offering a real commentary on the usages of it. The discussion of radiation has always been centered around nuclear power plants and weapons, when not too long ago the threat was often in people’s homes! I am glad I got to listen to this eye-opening lecture!