point-like

For 200 millennia, our species knew of only seven bodies routinely shuffling through the star-filled skies: the Sun, moon, and five, bright, point-like objects with classy names from Roman mythology.

Seth Shostak: A Bucketful of Worlds Seth Shostak 2011

For 200 millennia, our species knew of only seven bodies routinely shuffling through the star-filled skies: the Sun, moon, and five, bright, point-like objects with classy names from Roman mythology.

Seth Shostak: A Bucketful of Worlds Seth Shostak 2011

And this point-like source creates a curvature in 3+1-dimensional space-time, which we experience as gravity.

World-wide Campaign Sheds New Light on Nature's "LHC" | Universe Today 2010

It treats particles as point-like objects, which often creates problems (like an infinitely strong electric field in the vicinity of a point charge).

Are Changes Brewing and How Does the Mind Fit In? 2008

If a black hole would only exists as a point-like source without more then 1 dimension, how would this 1-dimensional source produce 3- dimensional gravity?

World-wide Campaign Sheds New Light on Nature's "LHC" | Universe Today 2010

If a black hole would only exists as a point-like source without more then 1 dimension, how would this 1-dimensional source produce 3- dimensional gravity?

World-wide Campaign Sheds New Light on Nature's "LHC" | Universe Today 2010

The QFT is the mathematics of point-like objects (particles) in a Euclidean or Minkwoski space.

Are Changes Brewing and How Does the Mind Fit In? 2008

An electron is as point-like an object as can be: it has no internal structure as far as we know, except possibly on the Planck scale (for which you need string theory and that's again quantum mechanics).

Are Changes Brewing and How Does the Mind Fit In? 2008

Today's most popular theory is that the ultimate constituents of matter consist, not of point-like particles, but of tiny vibrating strings.

Russell Stannard: The End Of Discovery: What Happens When Science Ends? Russell Stannard 2010

For example: In every experiment conducted so far, an electron always behaves as a point-like object.

World-wide Campaign Sheds New Light on Nature's "LHC" | Universe Today 2010