ASTEROIDAL DAMAGE TO THE EARTH: IMPLICATIONS BY ASTEROIDS ­ RUBBLE PILES. ... 13, Moscow 119892, Russia, E-mail:san@sai.msu.ru In the cause of asteroids ­ rubble piles its effective cross-section of collision to the Earth is determined not by consolidated body, but by cluster of its fragments. Since the stage of rubble ­ piles may be ~108 years (see our communication at previous symposium), it may be significant for estimation the asteroidal damage to the Earth. ...

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...

November 1-4, 1993 . ... On Nov 2 (b), strong evolution of the chain takes place during the LDE/CME event occurred in AR 7613 (see Figure 2 for details): new chain fragments are developed from the regions 1 and 2 eastward and westward respectively. (d)-(e) - Comparing the Nobeyama radio heliograms with the Yohkoh/SXT images, one can see that during three days the long-living chain between sources 1 and 2 coincides with a sharp SE boundary of the large coronal hole. ...

... Развивающая игрушка Лягушка Bright Starts привлечет ребенка красочным видом, подарит новые ощущения и вскоре станет любимой игрушкой, приятной и веселой. ... Цвет: розовый . ... Цвет: Коричневый . ... Цвет: натуральный . ... Кружка имеет силиконовую крышку оранжевого цвета с прорезью для питья. ... Цвет: синий . ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...