The general theory of relativity is concerned with this universal force of attraction

The universe could end with the Big Crunch meaning it collapses into one of these

When helium-4 is cooled below 2.17 K it becomes a super this able to comb walls & flow frictionlessly

Some versions of this 6-letter theory said that space-time had exactly 10 dimensions

There are rates of this not just for electricity but for heat; copper is 15000 times faster than air

Before this element can be used in a fission reactor it has to be enriched to increase the level of its 235 isotope

eV for short this unit of energy used in nuclear physics is so small a trillion of them equals the motion of a mosquito

(Jimmy of the Clue Crew gives the clue from Geneva Switzerland.) The L in LHC means large-- 17 miles in circumference; H is for hadrons the particles being accelerated and C refers to this what happens when the particles moving in different directions meet

A 9-letter process or type of coil that produces high-voltage current from low-voltage

A roentgen is a unit of measure of the amount of exposure to these discovered by Roentgen

Silicon & germanium are examples of these materials with resistivity between that of conductors & insulators

The gears in a clock are examples of the simple machine called a wheel & this

Ground effects on race cars are to keep the tires on the track fighting this 4-letter force that tries to raise them

A subatomic particle consisting of a quark & an antiquark the J particle is also called by this Greek-letter name

It's the property of some unstable atoms that causes them to give off ionizing radiation

This branch of physics deals with the structure & nature of cosmic bodies

Condensed-matter physics deals with superfluidity in which certain liquids flow without this

The smallest discrete amount of radiant energy is called this also a name for a branch of physics

(Jimmy of the Clue Crew is in the lab.) You can see the arrows are pointing in the same way right? Well watch what happens when water is added & this direction-changing physics property takes place

The first shell around a nucleus can have a maximum of this many electrons

It's the term for the minimum amount of fissile material needed to achieve a self-sustaining chain reaction

This massless subatomic particle sounds like an adhesive; it binds elementary particles together

In the 1930s physicist Ernest Lawrence developed this first circular particle accelerator

Meaning to neutralize a magnetic field this term is derived from the name of a German scientist

In 1935 he argued in the EPR Paper (he was the E) that quantum mechanics wasn't a complete theory