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Crown glass. Crown glass was an early type of window glass. In this process, glass was blown into a "crown" or hollow globe. This was then transferred from the blowpipe to a punty and then flattened by reheating and spinning out the bowl-shaped piece of glass (bullion) into a flat disk by centrifugal force, up to 5 or 6 feet (1.5 to 1.8 metres) in diameter.
2004: First podcast, invented by Adam Curry and Dave Winer, is a program made available in digital format for download over the Internet and it usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. [543] [544] [545] 2005: YouTube, the first popular video-streaming site, was founded
The first electric synthesizer was invented in 1876 by Elisha Gray who accidentally discovered that he could control sound from a self vibrating electromagnetic circuit and in doing so, invented a basic single note oscillator. This musical telegraph used steel reeds whose oscillations were created and transmitted, over a telephone line, by ...
A bulldozer is a crawler or a continuous tracked tractor, equipped with a substantial metal plate or blade, used to push large quantities of soil, sand, or rubble during construction work. In 1923, a farmer named James Cummings and a draftsman named J. Earl McLeod co-invented and created the first designs.
A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air.Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame [1] in the opening; the sash and frame are also referred to as a window. [2]
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Six Flags opened in 1961 in Arlington. These photos from the Star-Telegram show long-gone rides, historic moments and fun memories from the 1960s into into 2010s.
Timeline showing releases of Windows for personal computers and servers. Microsoft Windows is a computer operating system developed by Microsoft.It was first launched in 1985 as a graphical operating system built on MS-DOS.