Related Images
Download:
| Tiny | 69x128 | View | Download |
| Small | 139x256 | View | Download |
| Medium | 279x512 | View | Download |
| Original png | 506x926 | View | Download |
| Original as jpg | 506x926 | View | Download |
This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Looking for more info about this image?
Try a Google Reverse Image Search for it.
Try a Google Reverse Image Search for it.
Keywords from Image Description:
Hertz spark gap transmitter and parabolic antenna. sparkgap radio transmitter and parabolic antenna used by German physicist Heinrich Hertz in during his historic first researches on radio waves Hertzian waves from his book This is the earliest example of parabolic antenna The antenna is described on of the source as sheet of zinc