Litmus papers are often confused with universal pH indicator strips, but the latter is actually a different — and arguably better — technology. Litmus paper has limits to its usefulness. While red litmus paper is effective atdetermining whether a substance is acidic, and vice-versa for blue li...
Terminator 3: Rise of the Machines(Jonathan Mostow, Warner Brothers 2003). Startup of SkyNet and the beginning of the machine war against humans [DVD scenes 22–24] Google Scholar Star Wars Episode IV: A New Hope(George Lucas, 20th Century Fox 1977). Holographic chess [DVD scene 27] ...
The way in which the cacao was discovered suggests that the Mayo-Chinchipe people of the region were using it to make a beverage — perhaps the first ever hot chocolate. While we now like to enjoy this treat on a cold winter's evening, there is a good chance that it was used in a ...