... All portable ladders will meet ANSI standards. The use of step or platform ladders longer than 12 feet, extension ladders longer than 17 feet working length, or straight ladders longer than 20 feet is discouraged. ... Users are responsible for inspecting every ladder they use prior to each use. ... Ladders used to access a walking surface or roof must extend at least 36 inches above the landing. ... Users must face the ladder when ascending or descending, taking one step at a time. ...

... Assured of a reliable method of solving the normal equations, we now consider the equations of condition. The observed magnitude m of a star at M air masses with true instrumental magnitude is modelled as ([ 10 ], [ 28 ]) . ... The effective extinction coefficient depends on the effective spectral gradient [ 29 ] of the star, for which we use some color index, affected by half the atmospheric reddening ([ 26 ], [ 10 ]): . ... Thus, for the B band of UBV, we use the (U-V) color. ...

The IV International Conference "Cosmology. ... Cosmoparticle physics" (COSMION-99) in the Honor of 80-th Birthday of Isaak M. Khalatnikov is organized by the Center for Cosmoparticle Physics "Cosmion" and Landau Institute for Theoretical Physics in the period October 18-24, 1999 to consider the prospects of development of cosmology, relativistic astrophysics and cosmoparticle physics in Russia. ... The place of meetings is sanatorii RAS "Uzkoe" (Profsoyuznaya str. 123a) . ...

. Contents

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

The last few years have seen a transformation in our understanding of the formation and evolution of galaxies. ... In the years ahead, new facilities like the JWST, CCAT, the LMT, ALMA, the JVLA, LOFAR and the SKA will shed further light on how galaxies form by providing huge increases in sensitivity over five decades in wavelength: from the near-infrared to long radio-wavelengths. ... AGN and Galaxy Evolution . Gas in Galaxies . The High-redshift Universe and the First Galaxies . ...

. Russian (WIN) . 10-27/2/1999 . 6-28/1/1999 . For more information send a mail to: info@sputnik.infospace.ru . © 1998-2002 SMIS IKI RAN and SRC "PLANETA" Moscow, Russia.

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

Although there are no set rules for running Family ASTRO Astronomy Events, extensive testing with our Leader Kits and activities has allowed us to develop suggested agendas (found in each kit's "Leader Guide") and some general guidelines. ... Stations: These are stand-alone activities that can be explored by participants without much instruction from Event Leaders . In a "classic" Family ASTRO event, one or more of these self-guided activities are set up in the room before participants arrive. ...

Hide Zen home . ... Index . ... Do we really need them for database indexing ? ... We need simple numbering scheme, so that for any given point we could easily calculate the number of "pixel", this is what HealPix provides and lacks HTM. ... During Rtree queries the number of index blocks read is several times greater than during Q3C queries. ... But in Q3C scheme, as we showed before, the circle is segmented, so we extract from the database only a few percents more data than occur in the circle. ...

ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... CSIRO ATNF Data Archives . ... Teacher workshops . ... CSIRO Astronomy Space Science is holding a workshop on phase transitions in the diffuse interstellar medium. The motivation for the meeting is to synthesise new observational and numerical work which place us in a strong position to address broad issues related to cold gas in the diffuse ISM. ... John Dickey (University of Tasmania) . ...

... Registration will not guarantee that you will be able to attend until you receive an e-mail notification after registration closes. All accepted participants to the Conference will be listed on the web page under Participants. ... The fee will be included in your room bill which can be payed from Monday June 8 to Wednesday June 10 at Spineto reception desk (from 10:30 am to 2:30 pm). Room check-in and conference registration will take place in the afternoon/evening of Sunday June 7. ...