The Internet, as we know it today, often referred to as the World Wide Web, is nothing more than a system of hypertext documents presented to the user via a web browser.
Almost every page on the Internet is based on the HTML meta-language (some on XHTML) enriched with style sheets to help give it the right look.
The first kerosene lamp was constructed in 1853 by a Pole, Ignacy Lukasiewicz.
Lukasiewicz was a pharmacist who worked in the Lviv pharmacy "Under the Gold Star," owned by Piotr Mikolasch, a well-known Lviv businessman and pharmacist.
It is the largest hydropower station in the world.
It generates 100 billion kWh of electricity a year. In 2020, the dam generated 11,8 TWh, setting a world record previously held by the Itaipu Dam in South America.
Most types of steel melt between 1370°C (2500°F) and 1500°C (2732°F).
The melting temperature depends on its composition. In general, high-alloyed steels containing more alloying elements have higher melting points than low-alloyed steels.
