Also sold as a lightbulb:
From Amazon: BUY NOW Infinity Mirror Firework Bulb
Infinity Mirror Lamp: illusion of depth from multiple refections. This glass bulb sphere is partially coated inside and out with a thin metal layer. The metal layer is made thinner in a pattern of small circles to produce iridescent colors through thin-film interference effects. When lit from within by white LEDs, multiple reflections on the curved contour create the firework like spray of light and color. So much physics going on in this inexpensive novelty lamp!
Many models and colors to choose from, available here:
From Amazon: BUY NOW
Heng Balance Lamp
Heng Balance Lamp: magnetic suspension sculpture and light- with two neodymium magnets on cords suspended by their mutual magnetic attraction. In this design by Zanwen Li, the bottom cord engages the light switch.
Plasma globes are now available in many sizes and levels of quality. Here is a source for reasonably priced quality globes:
From Amazon: BUY NOW Plasma Globes (link 1)
From Amazon: BUY NOW Plasma Globes (link 2)
Plasma Globe: low pressure noble gasses exhibit glow discharge from high voltage, creating plasma filaments that rise upward due to heating- shown here in slow motion. A small high frequency coil at center creates the high voltage potential between the center electrode and the metal coated glass globe. Current flow through the thin gas produces the colorful emission spectra from the gasses
Get a levitating moon globe lamp here!
FromAmazon: BUY NOW Levitating Moon Globe Lamp
The Levimoon: this detailed moon globe is an adjustable lamp that levitates! Charged through wireless induction via the base, the moon floats above the Earth while illuminated from the inside to reveal the major features of the lunar surface, and will rotate when given a slight push. This kind of levitation uses a control system with an adjustable electromagnet in a feedback loop with Hall effect sensors which allows for fine tuning of the magnetic field to exactly balance the pull of gravity.
Similar itmes available here: From amazon: BUY NOW: Lighting Plasma Lamps
Lava Lightning Lamp: low pressure noble gasses glow due to discharge from high voltage and stimulate colored phosphors to emit yellow, blue, and red in this vintage device by Lava. A small high frequency coil at center creates the high voltage potential between the center electrode and the outer glass casing which is coated with a thin transparent film of metal. Current flow through the thin gas produces the glowing zigzagged path like that of lightning but more rounded. Shown here in 240 fps slow motion. Another of my vintage plasma lamps in my collection.
Get one here:
From Amazon: BUY NOW LED Newton's Cradle
Modern LED Newton's Cradle: the classic physics demonstration of conservation of momentum and energy cleverly updated with LEDs and light sensors that synchronize color with changes in motion.