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Description
Sobre la teoría de la relatividad especial y generalObra publicada en 1917, pocos aos antes de que Albert Einstein (1879 1955) estableciera definitivamente las famosas ecuaciones de campo de la relatividad general, "Sobre la teora de la relatividad especial y general" se propone dar una idea lo ms exacta posible de la teora de la relatividad, pensando en aquellos que, sin dominar el apartado matemtico de la fsica terica, tengan inters por la teora desde el punto de vista cientfico o filosfico general.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1856 reviews
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Product Reviews
★★★★★ 5
Well made shelves
Color: Dark Brown, Size: 15.7 inch
Cute and easy to attach to the wall.
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Reviewed in the United States on March 31, 2026
★★★★★ 5
Must buy!
Color: Dark Brown, Size: 15.7 inch
Very nice and sturdy!
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Stop searching
Color: Black, Size: 2+1 Tier Size
Ive purchased 5hese a few times now. Looks good. Reasonable price
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Versatile high quality shelves.
Color: Black, Size: 2+1 Tier Size, Color: Black, Size: 2+1 Tier Size
Versatile! We wanted shelves for our bathroom that could store some items that one would use in a guest bathroom, including toilet paper, hand towels, Q-tips, cotton rounds, etc. I am very happy with the quality. The wood shelves are sturdy as is the metal frame. Super easy to assemble and put up with included instructions. The capacity is perfect for bathroom items and it holds the weight of the items shown. Great value for the fair price.
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Reviewed in the United States on April 18, 2025
★★★★★ 5
Nice shelf!
Color: Black, Size: 2 in 1
I bought this shelf to put in the bathroom, I use it for putting wash cloths on the bottom shelf and a candle on the top shelf. It was easy to put together, and it was easy to hang. I did put polyurethane on the shelves, only so that, when I cleaned it, it would be easier to wipe. Everyone that sees it, likes it.
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Reviewed in the United States on July 8, 2025
