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Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
British architects and industrial designers once used a size called "Antiquarian", 31 in × 53 in (787 mm × 1,346 mm), as listed above, but given in the New Metric Handbook (Tutt & Adler 1981) as 813 mm × 1,372 mm (32 in × 54 in) for board size. This is a little larger than ISO A0, 841 mm × 1189 mm.
Samarium–cobalt magnets have maximum energy products (BH max) that range from 14 megagauss-oersteds (MG·Oe) to 33 MG·Oe, that is approx. 112 kJ/m 3 to 264 kJ/m 3; their theoretical limit is 34 MG·Oe, about 272 kJ/m 3. Sintered samarium–cobalt magnets exhibit magnetic anisotropy, meaning they can only be magnetized in the axis of their ...
For example, "agate" and "ruby" used to be a single size "agate ruby" of about 5 points; [2] metal type known as "agate" later ranged from 5 to 5.8 points. The sizes were gradually standardized as described above. [ 3 ]
For comparison, the letter paper size commonly used in North America (8 + 1 ⁄ 2 in × 11 in; 216 mm × 279 mm) is about 6 mm (0.24 in) wider and 18 mm (0.71 in) shorter than A4. Then, the size of A5 paper is half of A4, i.e. 148 mm × 210 mm ( 5.8 in × 8.3 in ).
It's steadily moving away from the Earth after reaching its closest point on Saturday. If you miss this chance, the comet won't return for 80,000 years. ... (C/2023 A3) #sonya7iii #Ohio pic ...
Wine is one of the most popular alcoholic beverages worldwide, with people drinking it for hundreds, if not thousands, of years. Especially in light of red wine’s place in the Mediterranean diet ...
Enjoy a classic game of Hearts and watch out for the Queen of Spades!