» 
Arabic Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hindi Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Malagasy Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Thai Turkish Vietnamese
Arabic Bulgarian Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hebrew Hindi Hungarian Icelandic Indonesian Italian Japanese Korean Latvian Lithuanian Malagasy Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swedish Thai Turkish Vietnamese

definition - Harvard_College_Observatory

definition of Wikipedia

   Advertizing ▼

Wikipedia

Harvard College Observatory

                   
  L'osservatorio di Harvard nel 1900

L'Harvard College Observatory (HCO, Osservatorio di Harvard) è un'istituzione che amministra una serie di edifici e strumenti usati per la ricerca astronomica.

Si trova a Cambridge, Massachusetts negli Stati Uniti e fu fondato nel 1839.
Con il Smithsonian Astrophysical Observatory forma parte del Harvard-Smithsonian Center for Astrophysics.

Indice

  Storia

Tra il 1847 e il 1852, il fotografo John Adams Whipple e l'astronomo William Cranch Bond, all'epoca direttore dell'osservatorio, usarono il grande telescopio rifrattore dell'osservatorio per produrre immagini della Luna di considerevole dettaglio e chiarezza. Al tempo era il più grande telescopio del mondo, e le loro immagini della Luna ottennero il premio per la fotografia alla Crystal Palace Exhibition di Londra nel 1851.
Il 16 luglio del 1850, Whipple e Bond fecero il primo dagherrotipo di una stella: Vega.

Molte donne all'HCO fecero la storia della ricerca astronomica. In particolare Annie Jump Cannon e Henrietta Swan Leavitt, assunte in origine per fare calcoli matematici a mano ed esaminare fotografie seppero dare grande contributo nel campo della classificazione stellare. Altre astronome che meritano menzione sono Williamina Paton Fleming, Antonia Maury e Cecilia Payne-Gaposchkin [1]

Il Minor Planet Center accredita la scoperta di alcuni asteroidi al Harvard Observatory.

  Note

  1. ^ A Century Ago, Women Astronomers At Harvard Made Scientific History.

  Altri progetti

  Collegamenti esterni

   
               

 

All translations of Harvard_College_Observatory


sensagent's content

  • definitions
  • synonyms
  • antonyms
  • encyclopedia

  • definizione
  • sinonimo

Dictionary and translator for handheld

⇨ New : sensagent is now available on your handheld

   Advertising ▼

sensagent's office

Shortkey or widget. Free.

Windows Shortkey: sensagent. Free.

Vista Widget : sensagent. Free.

Webmaster Solution

Alexandria

A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Give contextual explanation and translation from your sites !

Try here  or   get the code

SensagentBox

With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. Choose the design that fits your site.

Business solution

Improve your site content

Add new content to your site from Sensagent by XML.

Crawl products or adds

Get XML access to reach the best products.

Index images and define metadata

Get XML access to fix the meaning of your metadata.


Please, email us to describe your idea.

WordGame

The English word games are:
○   Anagrams
○   Wildcard, crossword
○   Lettris
○   Boggle.

Lettris

Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.

boggle

Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !

English dictionary
Main references

Most English definitions are provided by WordNet .
English thesaurus is mainly derived from The Integral Dictionary (TID).
English Encyclopedia is licensed by Wikipedia (GNU).

Copyrights

The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata.
The web service Alexandria is granted from Memodata for the Ebay search.
The SensagentBox are offered by sensAgent.

Translation

Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.

last searches on the dictionary :

3227 online visitors

computed in 0.062s

   Advertising ▼

I would like to report:
section :
a spelling or a grammatical mistake
an offensive content(racist, pornographic, injurious, etc.)
a copyright violation
an error
a missing statement
other
please precise:

Advertize

Partnership

Company informations

My account

login

registration

   Advertising ▼