Input: Read this: In infrared photography, infrared filters are used to capture the near-infrared spectrum. Digital cameras often use infrared blockers. Cheaper digital cameras and camera phones have less effective filters and can "see" intense near-infrared, appearing as a bright purple-white color. This is especially pronounced when taking pictures of subjects near IR-bright areas (such as near a lamp), where the resulting infrared interference can wash out the image. There is also a technique called 'T-ray' imaging, which is imaging using far-infrared or terahertz radiation. Lack of bright sources can make terahertz photography more challenging than most other infrared imaging techniques. Recently T-ray imaging has been of considerable interest due to a number of new developments such as terahertz time-domain spectroscopy.
Question: What is the technique that involves imaging with terahertz radiation?

Output: 'T-ray' imaging

QUES: After golf, oil painting was Eisenhower's second hobby. While at Columbia University, Eisenhower began the art after watching Thomas E. Stephens paint Mamie's portrait. Eisenhower painted about 260 oils during the last 20 years of his life to relax, mostly landscapes but also portraits of subjects such as Mamie, their grandchildren, General Montgomery, George Washington, and Abraham Lincoln. Wendy Beckett stated that Eisenhower's work, "simple and earnest, rather cause us to wonder at the hidden depths of this reticent president". A conservative in both art and politics, he in a 1962 speech denounced modern art as "a piece of canvas that looks like a broken-down Tin Lizzie, loaded with paint, has been driven over it."

Who called Eisenhower's art "simple and earnest"?
What is the answer?
ANS: Wendy Beckett

QUES: Florida had become a burden to Spain, which could not afford to send settlers or garrisons. Madrid therefore decided to cede the territory to the United States through the Adams-Onis Treaty, which took effect in 1821. President James Monroe was authorized on March 3, 1821 to take possession of East Florida and West Florida for the United States and provide for initial governance. Andrew Jackson served as military governor of the newly acquired territory, but only for a brief period. On March 30, 1822, the United States merged East Florida and part of West Florida into the Florida Territory.
Which president was given control of Florida

ANS: James Monroe was authorized on March 3, 1821 to take possession of East Florida and West Florida for the United States and provide for initial governance

In many ways, the Paleocene continued processes that had begun during the late Cretaceous Period. During the Paleocene, the continents continued to drift toward their present positions. Supercontinent Laurasia had not yet separated into three continents. Europe and Greenland were still connected. North America and Asia were still intermittently joined by a land bridge, while Greenland and North America were beginning to separate. The Laramide orogeny of the late Cretaceous continued to uplift the Rocky Mountains in the American west, which ended in the succeeding epoch. South and North America remained separated by equatorial seas (they joined during the Neogene); the components of the former southern supercontinent Gondwana continued to split apart, with Africa, South America, Antarctica and Australia pulling away from each other. Africa was heading north toward Europe, slowly closing the Tethys Ocean, and India began its migration to Asia that would lead to a tectonic collision and the formation of the Himalayas.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In which period did North and South america join?
Ah, so.. Neogene

Question: The word phonology (as in the phonology of English) can also refer to the phonological system (sound system) of a given language. This is one of the fundamental systems which a language is considered to comprise, like its syntax and its vocabulary.
Try to answer this question if possible: What sort of language system is vocabulary?
Answer: unanswerable

Context and question: In 1821, Saul Solomon issued a 70,560 copper tokens worth a halfpenny each Payable at St Helena by Solomon, Dickson and Taylor presumably London partners that circulated alongside the East India Company's local coinage until the Crown took over the island in 1836. The coin remains readily available to collectors.
When did the Crown take over the island?
Answer:
1836