Which countries in the world are in the top ten countries with the highest population density? Detailed answer

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Which countries in the world are in the top ten countries with the highest population density? Detailed answer

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Which countries in the world are in the top ten countries with the highest population density?

The ten most densely populated countries are as follows (average population density in brackets: number of people per square kilometer): Monaco (16), Singapore (326), Vatican City (6158), Malta (2045), Bahrain (1222), Bangladesh ( 968), Maldives (957), Barbados (943), Taiwan (628) and Mauritius (621).

Author: Kondrashov A.P.

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Where did the myth of lemming mass suicides come from?

Biologists in the 19th century could not explain the sudden decline in the population of Norwegian lemmings. Together with observations of their mass migrations, when some animals do not calculate their strength and drown when overcoming water barriers, this fact led to the emergence of a false hypothesis about mass suicides of lemmings. The myth was widely popularized by the 1958 Disney documentary The White Waste, in which lemmings were shown one by one jumping into the water from a high cliff. Later it turned out that the film crew specially purchased several dozen of these animals and forced them to move in the right direction with the help of snow-covered vehicles.

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DALI (Digital Addressable Lighting Interface) is a digital protocol designed specifically to create low-cost and flexible building lighting control systems. Only two wires are required to form a connection between DALI devices, and there is no need to observe polarity.

Historically, this protocol has gained immense popularity for lighting control in conjunction with ballasts (drivers) of fluorescent lamps. However, there are not so many LED lamps or power supplies for LED lamps (drivers) with the DALI protocol on the market. Current products that support DALI digital control are more expensive than common devices with a dimming interface based on a modulated pulse width (PWM) signal or a 0-10 V signal.

The DAP-04 converter from Mean Well allows you to connect to the lighting control bus via the DALI interface and get 4 independent analog PWM signals at the output. Thanks to DAP-04, instead of ready-made luminaires or drivers with DALI control, you can use cheap luminaires or drivers with simple PWM or 0-10 V control. In this way, a simple controlled DALI-based lighting system is realized with little financial cost.

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When installing the system, it is necessary to program and assign the DAP-04 (master controller) address. By default, the transmitter has address 255, which means "address not defined". After assigning an address, DAP-04 can work with any DALI controller.

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