# Hans Geiger

> He built the machine that clicks faster the closer you get to danger - a handheld oracle for invisible threat. But before that counter made his name a verb, Geiger fired particles at gold foil and found the atom had a heart.

*German physicist (1882-1945)*

**Canonical URL:** https://fame.am/person/hans-geiger

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** Germany
- **Born:** 1882-09-30
- **Died:** 1945-09-24
- **Status:** deceased
- **Gender:** male

## Bio

Johannes Wilhelm Geiger was born 30 September 1882, a German experimental physicist who would give radiation a voice. He carried out the Rutherford scattering experiments - firing particles at gold foil, expecting them to pass through, watching them ricochet - and in that deflection found proof of the atomic nucleus. Later he invented the Geiger counter, the device that turns ionizing radiation into audible warning. He also performed the Bothe-Geiger coincidence experiment, confirming that energy holds its ground even when light meets particle. His brother Rudolf charted weather and climate; Hans charted the invisible. He died 24 September 1945, six days short of sixty-three.

## Fame
- **Popularity score:** 55.9 / 100
- **Momentum:** 2.4 / 100  (trend: STABLE)
- **Historical depth:** 24.2 / 100
- **Attention shift:** 8.7 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 70.0 / 100

## Topics
#Scientists, #Scientist, #Physics, #Science, #Germany, #Europe, #20th Century

## Sources
- [Hans Geiger](https://pt.wikipedia.org/wiki/Hans_Geiger)
- [Hans Wilhelm Geiger](https://nl.wikipedia.org/wiki/Hans_Wilhelm_Geiger)
- [Hans Wilhelm Geiger](https://it.wikipedia.org/wiki/Hans_Wilhelm_Geiger)
- [漢斯·蓋革](https://zh.wikipedia.org/wiki/%E6%BC%A2%E6%96%AF%C2%B7%E8%93%8B%E9%9D%A9)
- [ハンス・ガイガー](https://ja.wikipedia.org/wiki/%E3%83%8F%E3%83%B3%E3%82%B9%E3%83%BB%E3%82%AC%E3%82%A4%E3%82%AC%E3%83%BC)
- [Гейгер, Ханс](https://ru.wikipedia.org/wiki/%D0%93%D0%B5%D0%B9%D0%B3%D0%B5%D1%80%2C_%D0%A5%D0%B0%D0%BD%D1%81)
- [Hans Geiger](https://pl.wikipedia.org/wiki/Hans_Geiger)
- [Wikidata](https://www.wikidata.org/wiki/Q57189)
- [Wikipedia](https://en.wikipedia.org/wiki/Hans_Geiger)
- [Pantheon 2.0](https://pantheon.world/profile/person/Hans%20Geiger)
- [Ханс Гайгер](https://bg.wikipedia.org/wiki/%D0%A5%D0%B0%D0%BD%D1%81_%D0%93%D0%B0%D0%B9%D0%B3%D0%B5%D1%80)
- [Hans Geiger (fizikour)](https://br.wikipedia.org/wiki/Hans_Geiger_(fizikour))
- [Hans Geiger](https://ca.wikipedia.org/wiki/Hans_Geiger)
- [ھانس گایگەر](https://ckb.wikipedia.org/wiki/%DA%BE%D8%A7%D9%86%D8%B3_%DA%AF%D8%A7%DB%8C%DA%AF%DB%95%D8%B1)
- [Hans Geiger](https://cs.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://da.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger (Physiker)](https://de.wikipedia.org/wiki/Hans_Geiger_(Physiker))
- [Χανς Γκάιγκερ](https://el.wikipedia.org/wiki/%CE%A7%CE%B1%CE%BD%CF%82_%CE%93%CE%BA%CE%AC%CE%B9%CE%B3%CE%BA%CE%B5%CF%81)
- [Hans Geiger](https://eo.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://es.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://et.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://eu.wikipedia.org/wiki/Hans_Geiger)
- [هانس گایگر](https://fa.wikipedia.org/wiki/%D9%87%D8%A7%D9%86%D8%B3_%DA%AF%D8%A7%DB%8C%DA%AF%D8%B1)
- [Hans Geiger](https://fi.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://fr.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://ga.wikipedia.org/wiki/Hans_Geiger)
- [Hans Geiger](https://gl.wikipedia.org/wiki/Hans_Geiger)
- [Ганс Вільгельм Гейгер](https://be.wikipedia.org/wiki/%D0%93%D0%B0%D0%BD%D1%81_%D0%92%D1%96%D0%BB%D1%8C%D0%B3%D0%B5%D0%BB%D1%8C%D0%BC_%D0%93%D0%B5%D0%B9%D0%B3%D0%B5%D1%80)
- [Ганс Вільгельм Гайгер](https://be_x_old.wikipedia.org/wiki/%D0%93%D0%B0%D0%BD%D1%81_%D0%92%D1%96%D0%BB%D1%8C%D0%B3%D0%B5%D0%BB%D1%8C%D0%BC_%D0%93%D0%B0%D0%B9%D0%B3%D0%B5%D1%80)
- [Hans Geyger](https://az.wikipedia.org/wiki/Hans_Geyger)

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