Element Electronics 55″ 4K UHD Partial Sun Outdoor Roku Smart TV, Weatherproof (IP55 Rated), Tempered and Anti-Glare Glass (EP400AB55R)

4K, 4-K or 4k may refer to:

• 4000 (number)
• Four kibibytes (4 × 1024 bytes, better written 4 KiB)
  • 4K disk sector size (Advanced Format)
  • 4K demoscene compo, a computer art competition using programs limited to 4 kibibytes
  • The Java 4K Game Programming Contest
• 4K resolution, a collective term for digital video formats having a horizontal resolution of approximately 4,000 pixels
  • 4K UHDTV, an ultra-high-definition television format
• 4K, the IATA airline code for Askari Aviation
• 4K, an alternative name for Cuatro Cabezas (Four Heads), an Argentine multimedia production company.
• 4K, model of Toyota K engine
• 4K, the production code for the 1976 Doctor Who serial The Brain of Morbius
• 4KScore test for prostate cancer screening
• Kenn Borek Air, a Canadian airline IATA code

Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other electrically charged particles. Electronics is a subfield of physics and electrical engineering which uses active devices such as transistors, diodes, and integrated circuits to control and amplify the flow of electric current and to convert it from one form to another, such as from alternating current (AC) to direct current (DC) or from analog signals to digital signals.

Electronic devices have hugely influenced the development of many aspects of modern society, such as telecommunications, entertainment, education, health care, industry, and security. The main driving force behind the advancement of electronics is the semiconductor industry, which in response to global demand continually produces ever-more sophisticated electronic devices and circuits. The semiconductor industry is one of the largest and most profitable sectors in the global economy, with annual revenues exceeding $481 billion in 2018. The electronics industry also encompasses other sectors that rely on electronic devices and systems, such as e-commerce, which generated over $29 trillion in online sales in 2017.

Glare may refer to:

• Glare (vision), difficulty seeing in the presence of very bright light
• Glaring, a facial expression of squinted eyes and look of contempt
• A call collision in telecommunications
• GLARE, Glass reinforced aluminium, an advanced aerospace material
• Gloor, family name from Aargau, Switzerland, also written as Glares, Glarer, Glaren, Glar, or Glaar

Music

• Glare (album), a 2001 album by Leo O'Kelly
• The Glare, 2009 album by British musicians Michael Nyman with David McAlmont
• "Glare", 2000 song by Japanese band Edge of Spirit
• "Glare", 2013 song by Japanese band Defspiral

Glass is an amorphous (non-crystalline) solid. Because it is often transparent and chemically inert, glass has found widespread practical, technological, and decorative use in window panes, tableware, and optics. Some common objects made of glass like "a glass" of water, "glasses", and "magnifying glass", are named after the material.

Glass is most often formed by rapid cooling (quenching) of the molten form. Some glasses such as volcanic glass are naturally occurring, and Obsidian has been used to make arrowheads and knives since the Stone Age. Archaeological evidence suggests glassmaking dates back to at least 3600 BC in Mesopotamia, Egypt, or Syria. The earliest known glass objects were beads, perhaps created accidentally during metalworking or the production of faience, which is a form of pottery using lead glazes.

Due to its ease of formability into any shape, glass has been traditionally used for vessels, such as bowls, vases, bottles, jars and drinking glasses. Soda–lime glass, containing around 70% silica, accounts for around 90% of modern manufactured glass. Glass can be coloured by adding metal salts or painted and printed with vitreous enamels, leading to its use in stained glass windows and other glass art objects.

The refractive, reflective and transmission properties of glass make glass suitable for manufacturing optical lenses, prisms, and optoelectronics materials. Extruded glass fibres have applications as optical fibres in communications networks, thermal insulating material when matted as glass wool to trap air, or in glass-fibre reinforced plastic (fibreglass).

Outdoor(s) may refer to:

• Wilderness
• Natural environment
• Outdoor cooking
• Outdoor education
• Outdoor equipment
• Outdoor fitness
• Outdoor literature
• Outdoor recreation
• Outdoor Channel, an American pay television channel focused on the outdoors

Roku ( ROH-koo) is a brand of smart TV operating systems, smart TVs, streaming devices, and smart home and audio products designed and marketed by Roku, Inc., headquartered in San Jose, California, United States. Roku's smart TV products primarily offer access to streaming media content, including streaming television, from online services.

One of Roku's early products was a digital media player developed in collaboration with Netflix and introduced in May 2008, and it has since released at least 10 generations of streaming players. Roku's products have historically been built around the idea of utilizing low-cost hardware interfaces for over-the-top (OTT) media consumption. Roku, Inc., also licenses its Roku OS operating system as middleware for smart TVs, and as of 2023 manufactures its own branded smart TVs, soundbars and smart home devices. The Roku OS targets streaming TVs or devices as its primary hardware, like Amazon's Fire OS, Samsung's Tizen OS, Google's Android TV OS, and Apple's tvOS.

By some estimates, as of 2022 the Roku OS is the leading streaming TV platform in the US in terms of market share. The Roku OS also holds a noticeable 30.5% share of the global TV streaming hours, whereas the Roku Channel Store has the largest collection of TV channels among all streaming TV platforms, hosting 38,941 channels as of 2023.

The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies. It is by far the most important source of energy for life on Earth. The Sun has been an object of veneration in many cultures. It has been a central subject for astronomical research since antiquity.

The Sun orbits the Galactic Center at a distance of 24,000 to 28,000 light-years. From Earth, it is 1 AU (1.496×10⁸ km) or about 8 light-minutes away. Its diameter is about 1,391,400 km (864,600 mi), 109 times that of Earth. Its mass is about 330,000 times that of Earth, making up about 99.86% of the total mass of the Solar System. Roughly three-quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron.

The Sun is a G-type main-sequence star (G2V), informally called a yellow dwarf, though its light is actually white. It formed approximately 4.6 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. Most of this matter gathered in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became so hot and dense that it eventually initiated nuclear fusion in its core. Every second, the Sun's core fuses about 600 billion kilograms (kg) of hydrogen into helium and converts 4 billion kg of matter into energy.

Far in the future, when hydrogen fusion in the Sun's core diminishes to the point where the Sun is no longer in hydrostatic equilibrium, its core will undergo a marked increase in density and temperature which will cause its outer layers to expand, eventually transforming the Sun into a red giant. This process will make the Sun large enough to render Earth uninhabitable approximately five billion years from the present. Subsequently, the Sun will shed its outer layers and become a dense type of cooling star (a white dwarf), and no longer produce energy by fusion, but it will still glow and give off heat from its previous fusion for trillions of years. After that, it is theorized to become a super dense black dwarf, giving off negligible energy.

Weatherproof is the first extended play by American rapper Cage. It was released on July 29, 2003 via Eastern Conference Records. Production was handled by DJ Mighty Mi and Cage, who also served as executive producers, as well as Camu Tao, DJ Emz, DJ Sebb, J-Zone, RJD2 and Rob "Reef" Tewlow. It features guest appearances from Camu Tao and Tame One.