Category: Physics
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Why is there radiation coming from the outer space?
Recently, a headline caught the public’s eye: “Radio signals coming from alien worlds, scientists worried.” While intriguing, the headline was quite misleading. The truth is, radio signals from space are not unusual—they’re a regular occurrence. There’s no reason to be alarmed. What’s genuinely fascinating, however, is understanding the cosmic processes that create these electromagnetic signals.…
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Karl Jansky: The Father of Radio Astronomy
In the early days of telecommunication, static noise often disrupted telephone conversations. Even today, walkie-talkies echo with the same familiar hiss. This disturbance, formally known as “signal noise” or “white noise,” doesn’t belong to the original signal. Instead, it creeps in from external sources, mixing with the main signal and distorting the sound. The result?…
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Mass in Special Relativity: Is Relativistic Mass Real?
The speed of an object can never be equal to or greater than the speed of light – we all know it more or less. Even having no knowledge of special relativity, it is no longer unknown to curious readers with the help of popular science content. Naturally, many of them wonder why an object’s…