Dosya:Sturgeon electromagnet.png

bilgipedi.com.tr sitesinden

Sturgeon_electromagnet.png(422 × 600 piksel, dosya boyutu: 32 KB, MIME türü: image/png)

Bu dosya Wikimedia Commons deposunda bulunmaktadır ve diğer projeler tarafından kullanılıyor olabilir. Aşağıda dosya açıklama sayfasındaki açıklama gösteriliyor.

Özet

Açıklama
English: Drawing of the first electromagnet, invented in 1824 by British scientist William Sturgeon. This was his original drawing from his 1824 paper to the British Royal Society of Arts, Manufactures, and Commerce. It was made of 18 turns of bare copper wire (insulated wire had not been invented) on a U-shaped lacquered iron core about 1 ft (30 cm) long and 1/2 inch (13 mm) diameter. When the wires were connected to a single cell copper-zinc-acid battery, the electromagnet could support 9 pounds. The little cups contain mercury and were an early method of making an electrical contact between wires. The one on the left acts as a power switch. Alterations to image: converted from JPG to 32color PNG.
(Detailed information is from Sylvanus P. Thompson (1891) Lectures on the Electromagnet, W.J. Johnson Co., New York, p.17-19)
Tarih
Kaynak Downloaded August 9, 2008 from Joseph Henry's contributions to the Electromagnet, Smithsonian Institution Archives, neg. no. 46,761-D, where it is credited to Sturgeon, W. (1824) 'Improved Electro Magnetic Apparatus', Trans. Royal Society of Arts, Manufactures, and Commerce, Vol.43, Plate 3, fig.13.
Yazar William Sturgeon
İzin
(Bu dosyanın tekrar kullanımı)
Public domain - Author died 1850

Lisanslama

Public domain

Bu çalışma ABD'de veya yazarın yaşamının sona ermiş olmasından 70 veya daha fazla süre geçtiğinde bu duruma uygun telif yasaları olan tüm ülkelerde kamu malıdır.


Ayrıca bu çalışma ABD'de neden kamu malı olduğuna dair ABD için kamu malı etiketlerini bulundurmalıdır. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).

Altyazılar

Bu dosyanın temsil ettiği şeyin tek satırlık açıklamasını ekleyin.

Bu dosyada gösterilen öğeler

betimlenen

Dosya geçmişi

Dosyanın herhangi bir zamandaki hâli için ilgili tarih/saat kısmına tıklayın.

Tarih/SaatKüçük resimBoyutlarKullanıcıYorum
güncel22.24, 9 Ağustos 200822.24, 9 Ağustos 2008 tarihindeki sürümün küçültülmüş hâli422 × 600 (32 KB)wikimediacommons>Chetvorno{{Information |Description={{en|Drawing of first Wikipedia:electromagnet invented in 1824 by British scientist William Sturgeon. It was made of 18 turns of copper wire on an iron core. This is Sturgeon's original drawing from his paper to the Britis

Aşağıdaki sayfa bu dosyayı kullanmaktadır: