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LED Experiment Reveals Fundamental Constants; Thai Police Rescue Baby Orangutans; Austria Wins Eurovision 2025; Brad Shaw Eyes Flyers Coach Role; South Africa Manhunt After Mass Shooting
Measuring fundamental constants using LEDs and a multimeter demonstrates that determining values such as Planck’s constant is possible outside of large university laboratories. By employing a custom PCB with a rotary switch to select between five LEDs of different wavelengths, and using a multimeter to measure the voltage at which each LED just begins to emit light, experimenters can map the relationship between photon energy and frequency. This approach, utilizing Planck’s relation E = hf, allows for a remarkably accurate calculation of Planck’s constant—with results landing within 5% of the accepted value. The experiment setup, complete with current measurement connectors for additional analysis, is practical for use in high school or undergraduate physics labs, showcasing how complex physics can be explored with accessible tools. Thai police have rescued two baby orangutans and arrested a 47-year-old man suspected of wildlife trafficking at a gas station. According to authorities, the suspect was caught on May 14 as he was about to deliver the orangutans, aged one month and one year, who were found in plastic baskets. He now faces charges of illegal possession of protected wildlife, carrying a potential four-year prison sentence. Orangutans, classified as endangered and protected under international law, are targeted by traffickers and often sold for around $9,000 each. The rescued apes are now under the care of Thai wildlife officials, with the youngest receiving medical attention due to poor health, and the older one taken to a sanctuary. This incident highlights ongoing concerns over the illegal wildlife trade, valued at up to $20 billion annually, and the vulnerability of orangutans due to habitat loss and poaching. JJ of Austria Wins 2025 Eurovision Song Contest JJ from Austria has secured victory at the 2025 Eurovision Song Contest with the performance of "Wasted Love." This achievement marks the third time Austria has taken home the top prize in the competition's history. Brad Shaw expressed strong interest in the Philadelphia Flyers head coach position, but the franchise ultimately named Rick Tocchet as their 25th head coach. Shaw, who served as the interim coach and was credited with significant improvements among the team's defensemen, will not be returning as an assistant on Tocchet's staff. This decision comes amid reports highlighting Shaw's desire for the top job and his positive impact on the Flyers' blueliners. With Tocchet taking the reins, attention turns to possible new assistant coaches and the expectation that Tocchet's leadership could help attract new talent to Philadelphia as the team enters a pivotal offseason. A manhunt has been launched after a mass shooting in Durban, South Africa, where an unknown number of attackers entered a tavern on Friday night and killed eight people.
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