Light Stocks List
|ARC Resources Ltd.
|Element Financial Corporation
|Athabasca Oil Corporation
|Crescent Point Energy Corp.
|Cardinal Energy Ltd.
|Obsidian Energy Ltd.
|Clear Blue Technologies Intl Inc
|Horizons BetaPro NYMEX Crude Oil Bull Plus ETF
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|BMO S&P/TSX Equal Weight Oil & Gas Index ETF
|Horizons Canadian Oil and Gas Equity Covered Call ETF
|iShares S&P/TSX Capped Energy Index ETF
|First Asset MSCI Canada Quality Index Class ETF
|Picton Mahoney Fort Act Ext Alt Fund ETF
|Crescent Point Energy Corp. (NYSE:CPG) Q4 2023 Earnings Call Transcript
|Element Fleet Management Full Year 2023 Earnings: EPS Misses Expectations
|Athabasca Oil Announces 2023 Year-end Results & Reserves and Plans to Renew Annual Share Buyback Program
|Crescent Point Announces Filing of 2023 Annual Information Form and Form 40-F
|Crescent Point Announces 2023 Results & Reserves
|Crescent Point Confirms Quarterly Dividend
|Obsidian Energy Announces Operational Update with Strong Start to 2024 Capital Program
|Element Reports Strong Fourth Quarter and Record 2023 Results, Provides Update on Strategic Initiatives
|What to Look for in Crescent Point's (CPG) Q4 Earnings?
|Obsidian Energy Announces TSX Approval for Renewal of Normal Course Issuer Bid
|Obsidian Energy Announces Launch of an Offer to Purchase up to $2.0 Million of our Outstanding Senior Unsecured Notes
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometers (nm), or 4.00 × 10−7 to 7.00 × 10−7 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz).
The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey.
The primary properties of visible light are intensity, propagation direction, frequency or wavelength spectrum, and polarization, while its speed in a vacuum, 299,792,458 meters per second, is one of the fundamental constants of nature. Visible light, as with all types of electromagnetic radiation (EMR), is experimentally found to always move at this speed in a vacuum.In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. Like all types of EM radiation, visible light propagates as waves. However, the energy imparted by the waves is absorbed at single locations the way particles are absorbed. The absorbed energy of the EM waves is called a photon, and represents the quanta of light. When a wave of light is transformed and absorbed as a photon, the energy of the wave instantly collapses to a single location, and this location is where the photon "arrives." This is what is called the wave function collapse. This dual wave-like and particle-like nature of light is known as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.