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Where and when did wine come out of the taps instead of water? Detailed answer

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Where and when did wine come out of the taps instead of water?

In the Italian commune of Marino, a grape festival is held annually. Its highlight is the supply of wine to the fountains in the main square instead of water.

In 2008, due to a technical error, instead of fountains, wine went into the water supply and began to pour from the taps of several nearby houses.

Authors: Jimmy Wales, Larry Sanger

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How do spiders use the power of electricity to trap prey?

The glue with which spiders cover the threads of the web does more than just keep flying insects. Due to its electrostatic properties, it also contributes to the fact that the threads of the web themselves are drawn to insects, which, in the process of flight and friction against the air, have accumulated a static charge on themselves (no matter positive or negative). The threads can deviate up to 2 mm, but at a tremendous speed - 2 m / s. The sticky spirals of the web have also been found to deform the Earth's electrostatic field at a distance of a few millimeters. Whether insects, such as bees, can sense this deformation in advance and adjust their course so as not to fall prey to the spider remains to be seen.

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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.

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