Hermann von Helmholtz Quote: No.5
- 5
Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. This is the case, for instance, when we produce fire by striking flint against steel, or when an iron bar is worked for some time by powerful blows of the hammer. Hermann von Helmholtz | Refcard PDF ↑
Tool box
- Name:
- Hermann von Helmholtz (random)
- Books & Videos:
- Hermann von Helmholtz Books & Videos
- Type:
- Physicist
- Nationality:
- German
- Birth Date / Year:
- August 31, 1821
- Death Date / Year:
- September 8, 1894
