Dr Seth explores the curious concavity of the lens of the human eye (a simple single lens camera at its best)!

Seth explores the curious world of "static electricity" via the accumulation of charge through friction on a dry slide day.

Seth loves distraction...I mean diffraction!  Here he sports one of those fabulous pairs of diffraction grating glasses which spits the light sources up into wonderful component wavelengths (ROYGBIV multiples).  

Sun behind, rainbow ahead with just the right conglomeration/alignment of water droplets! Those wholesome rays of white sunlight go in, refract thru each drop, reflect back toward lucky observer, and refract out with each color wavelength bending a bit differently producing a wonderful array of ROYGBIV! “When at bat, be refractive and reflective like the rainbow” says Kaul

boy!

Seth enjoying a net force of zero while observing the scattering off of higher frequency light (mostly blue visible to us).  Rayleigh scattering is awesome and makes for beautiful blue skies (on Earth).  He would like to go to Mars and witness what color of sky?

All forces in balance here.  A rare static equilibrium (Fnet=0) moment here!

When the state of rest is not appealing, the boyz initiate a non-zero net force to launch these air power rockets with a 5, 4, 3, 2, 1 Blast-off. The build up of air pressure pops the booster seal, and off the rocket goes upward some 200 feet! Then, it is some interesting conservation of linear momentum physics at work to observe…

There is so much awesome mechanical energy conservation laws in action behind scooting!  Translational KE + Rotational KE (no PE if not on an inclined ramp and minus air drag or other random factors) Even though at any given moment, one can (approximately) discern translational and rotational velocities, the amount of energy to keep up with the constant changes with these kids is very daunting!

Now, a scooter down a ramp uses the "potential energy" from gravity and naturally turns it into "kinetic energy" (translational plus rolling in the case of scooters).  The boys love the diverse selection of PE gravity ramps here at Atown Park!

When experimenting with collisions in trying to understand linear momentum via Newton’s Cradle (shown above), a helmet is not required but is highly fashionable with such apparatus.

Yes, hard to work against that gravity!  Curved bowls (curved space-times) make for an escape challenge for energetic masses of particles like this guy!  Luckily, the gravity is not so empowering that we can still observe the "light" of all actions and the help of an older brother can still provide for an escape velocity! 

The laws of physics clearly are visible here:  Dog disturbs water, water waves result.  But is it really that clear?  Pippin dog here really tests my boundaries in explaining his actions with classical laws of physics.  And, he leaves me with the daunting question:  Did the dog make the waves or did the waves make the dog?