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2. Multiway switching - Wikipedia

   en.wikipedia.org/wiki/Multiway_switching

   Toggling the switch disconnects one "traveler" terminal and connects the other. Electrically, a typical "3-way" switch is a single pole, double throw (SPDT) switch. By correctly connecting two of these switches together, toggling either switch changes the state of the load from off to on, or vice versa.

3. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   Shown here will be fastened to this recessed, non-metallic box, then a cover plate is installed. This "double gang" (two unit) installation uses non-metallic-sheathed cable and twist-on wire connectors. In electrical wiring, a light switch is a switch most commonly used to operate electric lights, permanently connected equipment, or electrical ...

4. Uniflow steam engine - Wikipedia

   en.wikipedia.org/wiki/Uniflow_steam_engine

   The large expansion ratio requires a large cylinder volume. To gain the maximum potential work from the engine a high reciprocation rate is required, typically 80% faster than a double-acting counterflow type engine. This causes the opening times of the inlet valves to be very short, putting great strain on a delicate mechanical part.

5. Dimmer - Wikipedia

   en.wikipedia.org/wiki/Dimmer

   Semiconductor dimmers switch on at an adjustable time (phase angle) after the start of each alternating-current half-cycle, thereby altering the voltage waveform applied to lamps and so changing its RMS effective value. Because they switch instead of absorbing part of the voltage supplied, there is very little wasted power.

6. Ozempic ‘microdosing’ is the new weight-loss trend: Should ...

   www.aol.com/news/ozempic-microdosing-weight-loss...

   A new trend gaining popularity among people trying to lose weight is microdosing the diabetes medication Ozempic. With approximately 70% of American adults meeting the criteria for being obese or ...

7. Bing Crosby struggled to sing 'White Christmas' to troops ...

   www.aol.com/bing-crosby-struggled-sing-white...

   Bing Crosby once said the most difficult thing he ever did in his decades-long career was sing "White Christmas" to homesick troops in France in December 1944.