Daily Archives: January 25, 2017

You can make your own lava lamp using safe household ingredients. Anne Helmenstine
Lava lamps are interesting and cool. Have you ever wanted to make your own cool oozing display? Lava lamps that you buy use high heat and toxic chemicals, but you can make a lava lamp at home using safe kitchen ingredients. Here’s how: Materials This project results in a non-toxic […]

Make a Safe Homemade Lava Lamp

This sphere of cinnabar in quartz may be considered to be a form of red mercury. Cinnabar or vermilion is red mercury(II) sulfide.
Red mercury is the name given to an explosive form of mercury, a red-colored mercury compound, or a potential nuclear material, depending who you ask. Wm. Yerkes has written a thought-provoking response to my FAQ concerning red mercury. It’s my pleasure to share this e-mail with you: Dear Madam, With […]

Red Mercury – Thoughts and Speculation

Boyle's Law describes the relationship between pressure and volume of a gas when mass and temperature are held constant. (NASA)
Boyle’s Law is a special case of the Ideal Gas Law in which the pressure and volume of an ideal gas are inversely proportional to each other, providing the temperature and mass of the gas are held constant. Here’s an example of how to perform a calculation using Boyle’s Law. […]

Boyle’s Law Example Problem