Technical questionsThis is a list of recently added questions about technical.
What was the first instant messenger?
ICQ was the first stand-alone instant messenger (IM) originally developed by the Israeli company Mirabilis in 1996. The name ICQ derives from the English phrase "I Seek You". The technology Mirabilis developed for ICQ was distributed free of charge. The technology's success encouraged AOL to acquire Mirabilis on June 8, 1998 . At its peak around 2001, ICQ had more than 100 million accounts registered.
Which of these devices is composed of 18 hexagonal mirror segments made of gold-coated beryllium?
James Webb Space Telescope
Hubble Space Telescope
The James Webb Space Telescope is a space telescope that will be the successor to the Hubble Space Telescope.The JWST will provide greatly improved resolution and sensitivity over the Hubble, and will enable a broad range of investigations across the fields of astronomy and cosmology. The JWST's primary mirror is composed of 18 hexagonal mirror segments made of gold-coated beryllium. These combine to create a 6.5-meter (21 ft 4 in) diameter mirror that is much larger than the Hubble's 2.4-meter (7 ft 10 in) mirror.
Who is the forerunner of virtual reality?
Myron Krueger is an American computer artist who developed early interactive works. He is also considered to be one of the first generation virtual reality and augmented reality researchers. Krueger went on to develop Metaplay, an integration of visuals, sounds, and responsive techniques into a single framework. In 1971, his "Psychic space" used a sensory floor to perceive the participants' movements around the environment.
When was the first machine gun patented?
On May 15, 1718, Englishman James Puckle patented his machine gun, the world's first! You may have thought the Gatling gun or the Maxim machine gun was the first machine gun, but depending on how you define “machine gun” James Puckle, Esq. (yes, he was a lawyer) got there first.
Who is considered the originator of cybernetics?
Norbert Wiener is considered the originator of cybernetics, a formalization of the notion of feedback, with implications for engineering, systems control, computer science, biology, neuroscience, philosophy, and the organization of society. Wiener is credited as being one of the first to theorize that all intelligent behavior was the result of feedback mechanisms, that could possibly be simulated by machines.
What is the modem for?
enhance the Wi-Fi network signal
a device that provides access to the Internet
browsing web pages
sending and receiving mail
The information sent over phone and cable lines are analog waves. So your modem takes the analog waves, changes it to digital and delivers it to your computer. In other words, your modem will connect you to the internet so that you can watch videos, upload videos, check emails, play on Facebook and anything else that you’d like to do online.
The Drake equation is used to...
estimate the number of extraterrestrial civilizations in the Milky Way galaxy
estimate the age of the universe and the number of existing galaxies
estimate the number of died stars
making computing connected with gravity and weightlessness
The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy. The equation was written in 1961 by Frank Drake, not for purposes of quantifying the number of civilizations, but as a way to stimulate scientific dialogue at the first scientific meeting on the search for extraterrestrial intelligence (SETI). The equation summarizes the main concepts which scientists must contemplate when considering the question of other radio-communicative life.
What is cementite in material science?
filler used in dentistry
heat-resistant alloy of iron and nickel
Cementite (or iron carbide) is a compound of iron and carbon, more precisely an intermediate transition metal carbide with the formula Fe3C. By weight, it is 6.67% carbon and 93.3% iron. It has an orthorhombic crystal structure.
What was the Bessemer converter used for?
for cement production
during production of steel
The Bessemer bulb is a cylindrical refractory vessel used to make steel from pig iron. The process is named after its developer Henry Bessemer, who published it in England after the mid-19th century. The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace.
What characterizes supercavitating torpedoes?
moving at high speed
intelligent targeting mode
possession of a laser weapon
A supercavitating torpedo is a torpedo using the effect of supercavitation to create a bubble around the torpedo to move at high velocity under water; up to 370 km / h. The disadvantage of such torpedoes is its exceptionally loud work and difficult maneuvering. Current applications of cavitation effects are mainly limited to projectiles or fast supercavitating torpedoes, and some propellers, but in principle the technique could be extended to include entire vehicles.
Play and see more questionsTechnical quiz