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Fortifications at Gla

The northwest part of the fortification or circuit wall at Gla, Greece as seen from the Mycenaean palace, built c. 13th century BCE (Mycenaean LHIII). Part of the Copais Basin to the left and beyond...
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Why Are Transition Metals Called Transition Metals?

Question: Why Are Transition Metals Called Transition Metals? Answer: Most of the elements on the Periodic Table are transition metals. These are elements that have partially filled d sublevel orbitals. Have you ever wondered why they are called transition metals? What transition are they undergoing?
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Ergonomics

Definition: Ergonomics is the science of work. Ergonomics derives from two Greek words: ergon, meaning work, and nomoi, meaning natural laws. Combined they create a word that means the science of work and a persons relationship to that work. In application ergonomics is a discipline focused on making products and tasks comfortable and efficient for the user.
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Can Insects Learn?

Most insect behavior is genetically programmed, or innate. A caterpillar with no prior experience or instruction can still spin a silken cocoon. But can an insect change its behavior as a result of its experiences? In other words, can insects learn? Insects Use Memories to Change Their Behavior You won't see one graduating from Harvard anytime soon, but indeed, most insects can learn.
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Edit and Display Boolean Fields using a CheckBox in Delphi's DBGrid

Tip submitted by Rene van der Heijden A series of articles titled Adding components to a DBGrid discusses placing just about any Delphi control (visual component) into a cell of a DGBrid. The idea is to create visually more attractive user interfaces for editing fields inside a DBGrid: a ComboBox for drop down lists; a DateTimePicker (calendar) for date values; a check box for boolean fields.
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