Botany originated in prehistory as herbalism with the efforts of early humans to identify and later cultivate edible, medicinal and poisonous plants, making it one of the oldest branches of science. Medieval physic gardens, often attached to monasteries, contained plants of medical importance. They were forerunners of the first botanical gardens attached to universities, founded from the 1540s onwards. One of the earliest was the Padua botanical garden. These gardens facilitated the academic study of plants. Efforts to catalogue and describe their collections were the beginnings of plant taxonomy, and led in 1753 to the binomial system of Carl Linnaeus that remains in use to this day.
Why did universities have these gardens?
facilitated the academic study of plants

Short-term memory is also known as working memory. Short-term memory allows recall for a period of several seconds to a minute without rehearsal. Its capacity is also very limited: George A. Miller (1956), when working at Bell Laboratories, conducted experiments showing that the store of short-term memory was 72 items (the title of his famous paper, "The magical number 72"). Modern estimates of the capacity of short-term memory are lower, typically of the order of 45 items; however, memory capacity can be increased through a process called chunking. For example, in recalling a ten-digit telephone number, a person could chunk the digits into three groups: first, the area code (such as 123), then a three-digit chunk (456) and lastly a four-digit chunk (7890). This method of remembering telephone numbers is far more effective than attempting to remember a string of 10 digits; this is because we are able to chunk the information into meaningful groups of numbers. This may be reflected in some countries in the tendency to display telephone numbers as several chunks of two to four numbers.
How much information can one store and recall in short-term memory?
capacity is also very limited

Dams remain the principal source of water both for domestic and agricultural use; Cyprus has a total of 107 dams (plus one currently under construction) and reservoirs, with a total water storage capacity of about 330,000,000 m3 (1.21010 cu ft). Water desalination plants are gradually being constructed to deal with recent years of prolonged drought. The Government has invested heavily in the creation of water desalination plants which have supplied almost 50 per cent of domestic water since 2001. Efforts have also been made to raise public awareness of the situation and to encourage domestic water users to take more responsibility for the conservation of this increasingly scarce commodity.
What do the people of Cyprus rely on for domestic and agricultural supply of water?
Dams