Jenis-jenis Ukuran Kertas

Ukuran kertas secara Internasional terdapat seri A, B, dan C. Ukuran R dan F muncul sesuai permintaan pasar.Berikut ukuran-ukuran dari setiap seri dalam Milimeter.


Seri A
Seri A biasa digunakan untuk cetakan umum dan perkantoran serta penerbitan. Dasar ukuran adalah A0 yang luasnya setara dengan satu meter persegi. Setiap angka setelah huruf A menyatakan setengah ukuran dari angka sebelumnya.Jadi A1 adalah setengah dari A0 dan demikian seterusnya. ukuran yang paling banyak digunakan adalah A4.

A0	841x1189
A1	594x841
A2	420x594
A3	297x420
A4	210x297
A5	148x210
A6	105x148
A7	74x105
A8	52x74
A9	37x52
A10	26x37

Seri B

Seri B besarnya kira-kira di tengah antara 2 ukuran seri A, biasa digunakan untuk poster dan lukisan dinding

B0	1000X1414
B1	707X1000
B2	500X707
B3	353X500
B4	250X353
B5	176X250
B6	125X176
B7	88X125
B8	62X88
B9	44X62
B10	31X44

Seri C

Seri C biasa digunakan untuk map, kartu post dan amplop

C0	917X1297
C1	648X917
C2	458X648
C3	324X458
C4	229X324
C5	162X229
C6	114X162
C7	81X114
C8	57X81

Seri R

Seri R biasa digunakan untuk kertas jenis Foto untuk mencetak foto

2R	60 x 90
3R	89 x 127
4R	102 x 152
5R	127 x 178
6R	152 x 203
8R	203 x 254
8R Plus	203 x 305
10R	254 x 305
10R Plus	254 x 381
11R	279 x 356
11R Plus	279 x 432
12R	305 x 381
12R Plus	305 x 465

Seri F

Seri F biasa digunakan untuk perkantoran dan fotocopy, biasa disebut kertas Folio

• F4 = 210x330

Seri Kertas Lain

Ada beberapa ukuran lain yang terkadang memakai nama Inggris, diantaranya Letter (Kwarto) 215.9mm x 279.4mm, Legal 215.9 mm x 355.6 mm | A4+, A3+

Sumber: http://id.wikipedia.org/wiki/Ukuran_kertas

ALL ABOUT EINSTEIN

Einstein's father

Einstein's mother

House of Einstein

Einstein's childhood photo

School class photograph in Munich , 1889. Einstein is in the front row, second from right. He did well only in mathematics and in Latin (whose logic he admired).

Was Einstein's Brain Different?

Of course it was-people's brains are as different as their faces. In his lifetime many wondered if there was anything especially different in Einstein's. He insisted that on his death his brain be made available for research. When Einstein died in 1955, pathologist Thomas Harvey quickly preserved the brain and made samples and sections. He reported that he could see nothing unusual. The variations were within the range of normal human variations. There the matter rested until 1999. Inspecting samples that Harvey had carefully preserved, Sandra F. Witelson and colleagues discovered that Einstein's brain lacked a particular small wrinkle (the parietal operculum) that most people have. Perhaps in compensation, other regions on each side were a bit enlarged-the inferior parietal lobes. These regions are known to have something to do with visual imagery and mathematical thinking. Thus Einstein was apparently better equipped than most people for a certain type of thinking. Yet others of his day were probably at least as well equipped-Henri Poincaré and David Hilbert, for example, were formidable visual and mathematical thinkers, both were on the trail of relativity, yet Einstein got far ahead of them. What he did with his brain depended on the nurturing of family and friends, a solid German and Swiss education, and his own bold personality.

A late bloomer: Even at the age of nine Einstein spoke hesitantly, and his parents feared that he was below average intelligence. Did he have a learning or personality disability (such as "Asperger's syndrome," a mild form of autism)? There is not enough historical evidence to say. Probably Albert was simply a thoughtful and somewhat shy child. If he had some difficulties in school, the problem was probably resistance to the authoritarian German teachers, perhaps compounded by the awkward situation of a Jewish boy in a Catholic school.

Einstein in the Bern patent office

Einstein when his light bending theory conformed

Einstein in Berlin with political figures

Einstein in a Berlin synagogue in 1930, playing his violin for a charity concert.

The Solvay Congress of 1927

E = MC^2

POSTWAR SIGNING

Einstein in his study in his home in Berlin, 1919.

Einstein at his home in Princeton, New Jersey

signature of the legend