The Trojan Room coffee pot, a coffee pot located in the so-called “Trojan Room” of Cambridge University’s computer laboratory, inspired the development of world’s first webcam in 1991. A camera aimed at the pot allowed people throughout the building—and eventually Internet users worldwide—to see a live image of the coffee pot on their computers and judge whether a trip to the coffee room would be worthwhile at any given moment. What happened to the pot after the webcam was switched off in 2001? Discuss
Source: The Free Dictionary
Transient lunar phenomena are short-lived lights, colors, or other changes in the appearance of the moon’s surface. Reports of such events have been recorded for at least 1,000 years and range from foggy patches to major changes in the lunar landscape. Though some have been observed independently by multiple witnesses or reputable scientists, the vast majority of accounts have come from a single observer or from a single location. What explanations have been given for the phenomena? 
Bloodletting is one of the oldest medical techniques, practiced from antiquity through the 18th century. It involves the withdrawal of considerable quantities of blood from a patient, and practitioners believe it can cure or prevent a number of illnesses and diseases. Numerous bloodletting methods have been employed over the centuries, including drawing blood directly from large veins, puncturing arteries, and even using leeches. A form of bloodletting is still used today to treat what diseases? 
An essential part of almost all cellular processes, enzymes are biological catalysts, proteins that can accelerate the rates of chemical reactions by several orders of magnitude. Enzymes serve a wide variety of functions inside living organisms, especially in the digestive systems of animals, where they help break down large molecules like starches and proteins. Like a key for a lock, each enzyme is specific to one molecule. What household products use enzymes to speed up biochemical reactions? 
The term “Orientalism,” when used to refer to Westerners’ study of Eastern cultures and peoples, has negative connotations, implying old-fashioned, prejudiced, outsider interpretations of the East. However, the term also refers to the imitation or depiction of aspects of Eastern cultures in the West by writers, designers, artists, and architects. Examples include Western attempts—from the Renaissance to the 18th century—to imitate the technical sophistication of what Chinese art form? 
Initially a journalist, Philby became a high-ranking member of British intelligence and is believed to have provided the USSR with classified information that caused the deaths of scores of American and British agents. Always in danger of having his cover blown by Soviet defectors, Philby himself defected to the USSR in 1963, after he was exposed as a member of the Cambridge Five spy ring. Philby died in Moscow in 1988. What killed him? 
Acheulean tools are the stone hand axes, cleavers, and other core tools created by prehistoric hominins across Africa, Asia, and Europe during the Lower Paleolithic Period. These tools date from around 1.5 million to 150,000 years ago, and some believe their development represents the genesis of human art, economy, and social organization. Curiously, some sites contain hundreds of hand-axes that are impractically large and apparently unused. What are some theories about their function? 
Instead of asking who voters plan to support in a future election, as is done in opinion polling, pollsters involved in exit polling ask people who they actually voted for as they leave polling stations. Exit polls are usually conducted by firms providing media outlets with an early indication of an election’s outcome, though they have also been used to deter election fraud. Critics, however, maintain that the results of these surveys can be distorted. How might exit polls influence an election? 
The didgeridoo, developed by the Australian Aborigines, is perhaps the world’s oldest wind instrument. Though the exact age of the didgeridoo is unknown, studies of rock art in northern Australia suggest that the Aboriginal people have been using it for approximately 1,500 years. Didgeridoos measure about 4 ft (1.5 m) in length and are made from branches that have been hollowed out by termites. A 2005 study found that practicing the didgeridoo can help reduce what sleep-related conditions? 
High-speed photography allows fast moving phenomena to be recorded with precision and clarity. While in 1948 high-speed photography was defined as a set of at least 3 photographs taken by a camera capable of recording a minimum of 128 frames per second, today’s equipment can shoot as many as 1 million frames per second. High-speed photography was first put to practical use in 1878 to investigate whether or not a trotting horse ever has all 4 feet off the ground at once. What did the images show?