... Multiexposition 34 images Sun 1/1000 sec f/22 and 1 image background. ... It shows position of the Sun on the sky in the same time of a day during one year. Analemma - a trace of the annual movement of the Sun on the sky - is well known among experts of sun-dials and old Earth's globes as a diagram of change of seasons and an equation of time. ... Previously, the position of the Sun on the sky was calculated with computer as well as optimal moments of time for taking each of the exposures. ...

... Les gaz de la poudre, dilatаЙs par la chaleur, repoussаИrent avec une incomparable violence les couches atmosphаЙriques, et cet ouragan artificiel, cent fois plus rapide que l'ouragan des tempаКtes, passa comme une trombe au milieu des airs. ... On n'avait pas, d'ailleurs, entendu dire que le projectile fб?t retombаЙ sur un point quelconque des аОles et des continents terrestres, et J.-T. Maston n'admettait pas un instant une chute possible dans les ocаЙans dont le globe est aux trois quarts couvert...

The Archeops experiment aimed at measuring the cosmic background emitted just after the Big Bang. The study of this radiation is essential to obtain precise information on the evolution of the Universe: density, Hubble constant, age of the Universe.. To achieve this goal, measurements have been done with devices cooled down at 100mK temperature placed at the focus of a warm telescope. ... 28960 visitors . ...