In the film "Up", Carl Fredricksen is a retired salesman of these; he uses a few to get away from it all
balloons
A roentgen is a unit of measure of the amount of exposure to these, discovered by Roentgen
X rays
In one version his daughter is among the items he turns to gold with his touch
Midas
You'll want to hang onto your silver dollars in this hobby AKA numismatics
coin collecting
FAMOUS NAMES
At a May 1989 ceremony in Cape Town, he received a bachelor of laws correspondence degree in absentia
In the 2010 movie called this "Legacy", light cycles were used as transport inside a virtual world
Tron
Silicon & germanium are examples of these materials with resistivity between that of conductors & insulators
semiconductors
My theorem? That you know this whiz who gave his name to the equation a2 + b2 = c2
Pythagoras
Now synonymous with in-line skating, this brand has been turning on a single row of wheels since 1980
Rollerblade
At a May 1989 ceremony in Cape Town, he received a bachelor of laws correspondence degree in absentia
Nelson Mandela
Elliott & E.T. make a memorable ride on one of these against a backdrop of the moon
a bicycle
The gears in a clock are examples of the simple machine called a wheel & this
an axle
We're 100/100ths sure that Simon Stevin introduced the concept of "decimal" these to Europe in 1585
fractions
It's mind over minutiae in this board game in which you answer questions in order to collect 6 wedges to win
Trivial Pursuit
This instantly recognizable car is a real version of the Mach Five driven by this animated hero, known in Japan as Go Mifune
Speed Racer
Ground effects on race cars are to keep the tires on the track, fighting this 4-letter force that tries to raise them
lift
The ancient Greek Hipparchus pioneered this branch of math, from ancient Greek for "triangle" & "measure"
trigonometry
It's the practice of dressing up like a character from a pop culture source, especially manga or anime
cosplay
In "Jupiter Ascending", this actor gets around on his cool boots that can levitate
Channing Tatum
A subatomic particle consisting of a quark & an antiquark, the J particle is also called by this Greek-letter name
psi
In mythology Prometheus isn't chained to that rock forever; this hero rescues him
Hercules
Options for wax when making candles: beeswax, soy or this petroleum "p"roduct
paraffin