curiosity Archivi - SPACECLICK https://www.spaceclick.com/blog/tag/curiosity-en/ Technology, Engineering, Space Sun, 29 May 2022 17:12:07 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 /wp-content/uploads/2020/02/SpaceclickSC_Star_Square_W-ICON2_500-45x45.png curiosity Archivi - SPACECLICK https://www.spaceclick.com/blog/tag/curiosity-en/ 32 32 The Opportunity Marathon – 42 KM and 11 years in a timelapse of 8 minutes https://www.spaceclick.com/blog/the-opportunity-marathon-42-km-and-11-years-in-a-timelapse-of-8-minutes/ Fri, 27 May 2022 17:45:34 +0000 https://www.spaceclick.com/?p=1268 To celebrate the work of the Opportunity rover on Mars, NASA has released an 8-minute time-lapse video of the 42 kilometres travelled in 11 years.         Eight breathtaking minutes with the photos taken by the hazcam on the left side and the map of the winding route followed by the small rover on the right.  The audio […]

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]]> What are symbolic links between folders and how to use them to increase space on your OS HDD https://www.spaceclick.com/blog/what-are-symbolic-links-between-folders-and-how-to-use-them-to-increase-space-on-your-os-hdd/ Mon, 02 Nov 2020 01:43:00 +0000 https://www.spaceclick.com/?p=1471 When we install a large program on Windows, links are created in the registry that help keep track of the real location of the executable files.  For this reason, if we move a program to a secondary partition, it will stop working (the links will stop running).    How do you ensure the continuity of […]

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]]> Panorama of Mars at 1 billion pixels https://www.spaceclick.com/blog/panorama-of-mars-at-1-billion-pixels/ Mon, 02 Nov 2020 01:19:44 +0000 https://www.spaceclick.com/?p=1497 A virtual visit to the red planet, thanks to the incredible photo released by NASA.  A very high resolution panoramic image, captured by the rover “Curiosity” and the result of an assemblage of 896 single photos taken on Mars between October and November 2012.     The results are amazing.  Here’s a tip: put it in full […]

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]]> How to calculate hash MD5-SHA1-SHA-256-CRC32 in Windows Linux Mac and online https://www.spaceclick.com/blog/how-to-calculate-hash-md5-sha1-sha-256-crc32-in-windows-linux-mac-and-online/ Sun, 01 Nov 2020 22:41:48 +0000 https://www.spaceclick.com/?p=1481 What they are  Hash are used in computer science to map a string (a sequence of bits) of arbitrary length into a string of predefined length.  It is a sort of ‘signature’ of an electronic document. For each string you can calculate a hash, so each different string will have different hashes.  However, calculating the […]

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]]> RAR5 vs RAR4 vs 7ZIP – A quick comparison https://www.spaceclick.com/blog/rar5-vs-rar4-vs-7zip-a-quick-comparison/ Sun, 01 Nov 2020 20:47:06 +0000 https://www.spaceclick.com/?p=1402 Better. zip .7z or .rar?  Often we don’t even pay attention to it, but when we click on a ‘zipper’ file, we are using sophisticated compression algorithms that over the years keep getting better and better.   There are many algorithms and therefore compression formats:  Zipper, Rar, GZip, BZip2, 7z, Tar, Tar.gz …   Among the most popular on Windows we have: 7z, Zip and Rar.  The first and the second one […]

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]]> Solar activity in real time with SOHO (NASA ESA NOAA) https://www.spaceclick.com/blog/solar-activity-in-real-time-with-soho-nasa-esa-noaa/ Sun, 01 Nov 2020 19:52:37 +0000 https://www.spaceclick.com/?p=1335 SOHO – Solar and Heliospheric Observatory EIT 304 EIT 195 EIT 171 EIT 284 LASCO C2 LASCO C3 H-Alpha H-Alpha Contrasted Nobeyama 17 GHz Magnetogram 525.02nm (Fe I) Solar X-rays Geomagnetic Field   X-Ray flux Electron flux Proton flux Magnetometer Satellite Environment   SOLAR WIND Total Electron Content (TEC) Latest 48h of photon data Solar […]

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]]> How to get better icons in Windows 7 8 and Windows 10 https://www.spaceclick.com/blog/how-to-get-better-icons-in-windows-7-8-and-windows-10/ Sun, 01 Nov 2020 18:17:58 +0000 https://www.spaceclick.com/?p=1100 Many times you may have wanted to change the icon to a folder under Windows.  The default choice, however, is often poor, with icons that refer to the years of Windows XP.  There is, however, a little trick that allows us to quickly explore all the new system icons.   In the little window for the icon […]

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]]> How the Windows password works and why when we type a wrong one it takes more time to login https://www.spaceclick.com/blog/how-the-windows-password-works-and-why-when-we-type-a-wrong-one-it-takes-more-time-to-login/ Sun, 01 Nov 2020 17:02:35 +0000 https://www.spaceclick.com/?p=1264 It may have happened that you entered the wrong password on Windows (XP/7/8/10…) and noticed that the computer took longer to retry the input field.  Many will have wondered why when you enter the correct password the PC recognizes it immediately, while it remains in a sort of semi-stall otherwise.   Some may have thought that […]

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]]> How to create a safe and easy to remember password https://www.spaceclick.com/blog/how-to-create-a-safe-and-easy-to-remember-password/ Sun, 01 Nov 2020 16:23:20 +0000 https://www.spaceclick.com/?p=1249 They say that the most used passwords are always the same (example: 123456, password, qwerty, etc. …), or in any case referable to birth dates or memorable moments of someone’s life. Well, using public characters or real places is not a good idea anyway: in fact there are some software (like John the Ripper) that are able to use huge dictionaries, […]

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]]> The 17 equations that have changed the World https://www.spaceclick.com/blog/the-17-equations-that-have-changed-the-world/ Fri, 30 Oct 2020 22:23:37 +0000 https://www.spaceclick.com/?p=1069 An interesting collection made by Ian Stewart, British mathematician and writer.  From Pythagoras’ theorem, passing through Euler and Fourier, to Maxwell, Einstein, and Shannon; all the greatest discoveries are listed in chronological order.  But what can I say? in my opinion there is room for at least another dozen equations, in any case you can see his list in the picture below. 

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