TESLAbikář - Light as man has never seen it before
Světlo je fascinující fenomén, který hraje klíčovou roli v našem každodenním životě. Od nejrychlejší rychlosti světla ve vakuu až po nejjasnější umělé světlo, rekordy týkající se světla a osvětlení překračují hranice vědy a technologie. Pojďme se podívat na některé z nejzajímavějších světových rekordů, které ukazují, jak neuvěřitelné a všestranné světlo může být.
Fastest Light Speed in the Lab
The speed of light in a vacuum is approximately 299,792,458 metres per second, a fundamental physical constant. However, in 2019, scientists at the Massachusetts Institute of Technology (MIT) created an experiment that made it possible to delay, accelerate or completely stop the pulse of light using special materials. This discovery shows how we can manipulate the speed of light, which has potential applications in communications and quantum computing.
Brightest Artificial Light
In 2018, scientists at the Center for Ultrafast Laser Science (CULS) in the US created the world's most powerful artificial light. Using ultrashort laser pulses, they achieved intensities of up to 300 terawatts (TW). This record-breaking power enables the study of new physical phenomena and has applications in materials science and medicine.
Longest Photon Teleport
In 2017, scientists in China achieved a record for quantum teleportation, when they transmitted the quantum state of a photon over a distance of 1,200 kilometres using a satellite link. This achievement represents a significant step forward in quantum communication and secure information transfer, showing how new technologies can harness the unique properties of light.
Longest Distance Over Which Light Has Been Transmitted by Fibres
In 2012, scientists from the Japanese company NTT set a record for transmitting light over an optical fibre over a distance of 69.8 kilometres without the use of repeaters. This feat has made a significant contribution to advancing the development of high-speed internet and telecommunications technologies that depend on the efficient and reliable transmission of light.
The Brightest Natural Light on Earth
Sunlight is one of the brightest natural light phenomena on Earth. The sun emits a tremendous amount of energy, only a small fraction of which reaches the Earth. At the Earth's surface, sunlight can reach an intensity of up to 1,361 watts per square metre, known as the solar constant. This natural light is crucial for life on Earth and affects many aspects of our daily lives.
Longest Visibility of Light at Sea
In 1990, visibility of the lighthouse on the island of La Palma in the Canary Islands was recorded from mainland Morocco, a distance of approximately 418 kilometres. This record was achieved due to the special atmospheric conditions that allowed light to travel such a great distance, and shows how important lighting can be for navigation and safety at sea.
Světlo a osvětlení hrají zásadní roli v našich životech a umožňují vědcům a inženýrům dosahovat neuvěřitelných výkonů a objevů. Od nejrychlejší rychlosti světla po nejdelší fotonový teleport, tyto rekordy ukazují, jak fascinující a všestranné může světlo být. Sledujte další vývoj v této oblasti, protože budoucnost světla a osvětlení slibuje ještě více překvapivých objevů a inovací.