Ballpen
BallPen - Pen amfani da haruffa sanda (tube cika da pasty tawada) tare da ball aya alkalami a kan karshen. Channel a kan abin da tawada da aka gudanar a karshen karamin karfe ball ana katange, cewa lokacin rubuta a farfajiya na Rolls takarda daga bãya gefen tawada wetting. A kananan rata tsakanin ball da bangon damar da shi a juya da mirgina barshi cikin takarda sawu. Waɗannan su ne mafi arha, mafi sauki, don haka ya fi na kowa alkalami. Tawada manna amfani da ball-aya alkalami, da tawada ne daban-daban daga rubuce-rubuce marmaro alkalama. An halicci kan man fetur kuma mafi m, wanda ya hana shi daga gudãna daga cikin sanda.
 Ballpen | |
|---|---|
writing implement (en)  | |
 | |
| Bayanai | |
| Ƙaramin ɓangare na |
alkalami da stationery (en) |
| Farawa | 1889 |
| Amfani |
ballpoint pen artwork (en) |
| Suna saboda | Maik |
| Mabiyi |
Sergent-Major (en) |
| Mai ganowa ko mai ƙirƙira |
Max Pike (en) da László Bíró (en) |
| Time of discovery or invention (en) | 1938 |
| Hannun riga da |
fountain pen (en) da Rapidograph |
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Da aiki manufa na rike da aka jadadda mallaka Oktoba 30, 1888, a Amirka ta Yohanna Loudon. A m shekaru, da aka ƙirƙirarru, kuma ya jadadda mallaka daban-daban kayayyaki alkalama: May 3, shekara ta 1904 - George Parker, 1916 - Van Vechten Raizberg (Eng. Van Vechten Reisberg).
Zamani ballpoint alkalami ƙirƙira da Hongeriyanci jarida Laszlo Biro (Hung. Laszlo József Bíró) a 1931 (jadadda mallaka a 1938). A Argentina, inda ya rayu shekaru 'yar jarida, wadannan alkalama an kira daga bãyansa, "Biyer."
Akwai biyu na asali iri alkalama - yarwa kuma m sanduna.