A light echo is a physical phenomenon caused by light reflected off surfaces distant from the source, and arriving at the observer with a delay relative...

In the 2000s, most echo effects units used electronic or digital circuitry to recreate the echo effect.[citation needed] Light echo ἠχώ, Henry George Liddell...

000 light years (10 kpc). Rapidly brightening objects like novae and supernovae are known to produce a phenomenon known as light echo. The light that...

shock breakout. The infrared echo is accompanied by a scattered light echo. The recorded spectrum of the optical light echo proved the supernova was of...

Hubble Space Telescope image of the expanding light echo around the star V838 Mon, which is more than 19,000 light-years away from Earth. Another conspiracy...

Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, were metalized...

Amazon Echo, often shortened to Echo, is a brand of smart speakers developed by Amazon. Echo devices connect to the voice-controlled intelligent personal...

000 K cooler than expected from other supernova impostor events. Further light echo observations show that following the peak brightness of the Great Eruption...

Echo Park is a neighborhood in the east-central region of Los Angeles, California. Located to the northwest of Downtown, it is bordered by Silver Lake...

supergiants are 7.7 ± 1.7 Mpc and 9.6 ± 2.2 Mpc. Ben Sugerman found a "light echo" – a later reflection of the explosion – associated with SN 2003gd. This...

NASA/ESA/CSA James Webb Space Telescope image of the supernova remnant The light echo of Supernova 1987A History of supernova observation List of supernovae...

dependent on cosmological model than those based on local measurements. Light echos can be also used as standard rulers, although it is challenging to correctly...

continued to be debated until the spectrum of its light at peak luminosity was measured in a light echo in 2008. This gave final confirmation that it was...

Frank–Tamm formula, giving the spectrum of Cherenkov radiation Light echo List of light sources Non-radiation condition Radioluminescence Tachyon Transition...

limit non-sun light, as well as Wi-Fi and cellular signals. She also converted her swimming pool to saltwater. Other stated aims of Bia-Echo include programs...

The Tecnam P92 Echo and Tecnam P92 Eaglet are Italian high-winged, light aircraft, designed by Luigi Pascale and built by Tecnam of Naples. The P92 design...

Amazon Echo Show is a smart speaker that is part of the Amazon Echo line of products. Similarly to other devices in the family, it is designed around Amazon's...

An Echo of Things to Come is a 2017 Australian high fantasy novel by James Islington. It is the second book in The Licanius Trilogy, preceded by The Shadow...

the outburst was over, the Hubble Space Telescope was able to observe a light echo, which illuminated the dust surrounding the star. Monoceros also contains...

bought by Amazon in 2013. It was first used in the Amazon Echo smart speaker and the Echo Dot, Echo Studio and Amazon Tap speakers developed by Amazon Lab126...

Licanius Trilogy. It was preceded by The Shadow of What Was Lost and An Echo of Things to Come. The novel received mixed critical reviews. Thousands of...

initial blast. This delay, called a light echo, allowed the astronomers to measure the spectral signature of the light from the explosion. By virtue of the...

speed of light. All of these sources are thought to contain a black hole, responsible for the ejection of mass at high velocities. Light echoes can also...

Echo Night is a trilogy of Japanese adventure games developed by FromSoftware. The original Echo Night was first released in 1998 for the PlayStation....

several tens of thousands of light years between HsV and the quasar in the nearby galaxy: HsV would show a "light echo" or "ghost image" of events that...

faint nebulosities are usually illuminated by their progenitor stars via light echos as observed with the spherical shell of Nova Persei 1901 or the energies...

In magnetic resonance, a spin echo or Hahn echo is the refocusing of spin magnetisation by a pulse of resonant electromagnetic radiation. Modern nuclear...

it may display a light echo, where light from the supernova is reflected from matter along our line of sight, making it appear to "echo" outwards from the...

Triple parentheses or triple brackets, or an echo, often referred to in print as an (((echo))), are an antisemitic symbol that has been used to highlight...

Szalay; J. Vandenberg (2009). "Galaxy Zoo: 'Hanny's Voorwerp', a quasar light echo?". Monthly Notices of the Royal Astronomical Society. 399 (1): 129–140...