Divergent lines examples

To answer these questions, we design a sniff module using a commercial-off-the-shelf IR receiver on a Raspberry Pi and show that the Infrared (IR) signal emanating from the remote control of a Smart TV can be captured by one of the nearby IoT devices, for example, a smart air-conditioner, even the signal is not aimed at the air-conditioner. The IR signal range and receiving angle are larger than most have thought. We also developed algorithms to extract semantic information from the sniffed IR control signals, and evaluated with real-world applications. The results showed that lots of sensitive information could be leaked out through the sniffed IR control signals, including account name and password, PIN code, and even payment information.

Sometimes showers form less randomly in lines or bands when winds blow from different directions and collide. This forces the air upwards, and if there is enough moisture, clouds form and give rain.

Converging lines examples

Infrared (IR) remote control is a widely used technology at home due to its simplicity and low cost. Most considered it to be "secure'' because of the line-of-sight usage within the home. In this paper, we revisit the security of IR remote control schemes and examine their security assumptions under the settings of internet-connected smart homes. We focus on two specific questions: (1) whether IR signals could be sniffed by an IoT device; and (2) what information could be leaked out through the sniffed IR control signals.

Showers are the type of weather that give us rain, sleet, snow or hail in an almost random fashion. They are a form of convective precipitation that occurs when air rises over land or sea, unlike cold, warm or occluded fronts (dynamic precipitation) that depend on different air masses colliding.

Converging lines in art

Convergentand divergent lines

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Kong Huang, YuTong Zhou, and Ke Zhang, The Chinese University of Hong Kong; Jiacen Xu, University of California, Irvine; Jiongyi Chen, National University of Defense Technology; Di Tang, Indiana University Bloomington; Kehuan Zhang, The Chinese University of Hong Kong

A convergence line is a band of cloud that remains fairly stationary and can produce large amounts of rain across a relatively small area.

A common example of a convergence line occurs because of a sea breeze during warmer months of the year, but convergence lines can happen at any time.