This is perhaps a fork of this thread insomuch as it was what got me thinking again about best ways of doing these things. Immutable objects are handy since they help with thread-safety and even ...

Water tractor beam: Complex waves generate flow patterns to manipulate floating objects. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2014 / 08 / 140810214202.htm ...