214 were donated in November
This month, we are on track to donate 216

Contact force


Contact force rate
it means a force can only happen when forces are touching each other

Link to this page:

Add or improve a definition

All definitions are approved by humans before publishing. Any promotional content will be deleted.
HTML tags are not allowed and will be encoded.
Use square brackets to link a word. For example, [abc] will render as abc. External links will be removed
home   recent additions   webmaster page   banners   feed a child