![Dennis Lehmkuhl Image source: Bergische Universität Wuppertal Dennis Lehmkuhl Image source: Bergische Universität Wuppertal](http://www.timeone.ca/wp-content/uploads/2012/06/Dennis-Lehmkuhl.jpg)
Image source:
Bergische Universität Wuppertal
Dennis Lehmkuhl is a British natural philosopher who studies the gravitational field.
Image source:
Bergische Universität Wuppertal
Dennis Lehmkuhl is a British natural philosopher who studies the gravitational field.