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1970 in science |
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The year 1970 in science and technology involved some significant events, listed below.
The charm quark, charmed quark, or c quark is an elementary particle found in composite subatomic particles called hadrons such as the J/psi meson and the charmed baryons created in particle accelerator collisions. Several bosons, including the W and Z bosons and the Higgs boson, can decay into charm quarks. All charm quarks carry charm, a quantum number. This second-generation particle is the third-most-massive quark, with a mass of 1.27±0.02 GeV/c2 as measured in 2022, and a charge of +2/3 e.
The year 2001 in science and technology involved many events, some of which are included below.
The year 2003 was an exciting one for new scientific discoveries and technological breakthroughs progress in many scientific fields. Some of the highlights of 2003, which will be further discussed below, include: the anthropologic discovery of 350,000-year-old footprints attesting to the presence of upright-walking humans; SpaceShipOne flight 11P making its first supersonic flight; the observation of a previously unknown element, moscovium was made; and the world's first digital camera with an organic light-emitting diode (OLED) display is released by Kodak.
The year 2004 in science and technology involved some significant events.
The year 1997 in science and technology involved many significant events, listed below.
The year 1979 in science and technology involved some significant events, listed below.
The year 1973 in science and technology involved some significant events, listed below.
The year 1966 in science and technology involved some significant events, listed below.
The year 1965 in science and technology involved some significant events, listed below.
The year 1962 in science and technology involved some significant events, listed below.
The year 1958 in science and technology involved some significant events, listed below.
The
J/ψ
(J/psi) meson is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark. Mesons formed by a bound state of a charm quark and a charm anti-quark are generally known as "charmonium" or psions. The
J/ψ
is the most common form of charmonium, due to its spin of 1 and its low rest mass. The
J/ψ
has a rest mass of 3.0969 GeV/c2, just above that of the
η
c, and a mean lifetime of 7.2×10−21 s. This lifetime was about a thousand times longer than expected.
The year 2005 in science and technology involved some significant events.
STEREO is a solar observation mission. Two nearly identical spacecraft were launched in 2006 into orbits around the Sun that cause them to respectively pull farther ahead of and fall gradually behind the Earth. This enabled stereoscopic imaging of the Sun and solar phenomena, such as coronal mass ejections.
The year 2006 in science and technology involved some significant events.
The year 2007 involved many significant scientific events and discoveries, some of which are listed below.
The year 2009 involved numerous significant scientific events and discoveries, some of which are listed below. 2009 was designated the International Year of Astronomy by the United Nations.
The year 2008 involved numerous significant scientific events and discoveries, some of which are listed below.
Luciano Maiani is a Sammarinese physicist best known for his prediction of the charm quark with Sheldon Glashow and John Iliopoulos.
John (Jean) Iliopoulos is a Greek physicist. He is the first person to present the Standard Model of particle physics in a single report. He is best known for his prediction of the charm quark with Sheldon Glashow and Luciano Maiani. Iliopoulos is also known for demonstrating the cancellation of anomalies in the Standard model. He is further known for the Fayet-Iliopoulos D-term formula, which was introduced in 1974. He is currently an honorary member of Laboratory of theoretical physics of École Normale Supérieure, Paris.
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