Quick Look: Twitter flashcards

What are Twitter flashcards? You may not know, because they were introduced very recently. To the left is a screenshot. Basically, whenever you scroll over someone’s name, whether it be in a mention or before the actual tweet, one of these will pop up. You can follow the person, unfollow, and see their statistics as shown to the left. It’s …

DO NOT try these at home!

Chemical reactions can be so fun. For example, Mg + HCl: [youtube=http://www.youtube.com/watch?v=afxwDTz_JTk] Sodium, potassium, rubidium, and caesium are known as Alkali metals. They can be found on the leftmost column of the Periodic Table. These elements are extremely reactive since they only have one electron to lose. This is the reaction of rubidium, then caesium, in water: [youtube=http://www.youtube.com/watch?v=sNdijknRxfU] If you …