I've known several Jacks, and they all... without exception, were more than usually plain.

Magnetic media

Sound reproducing apparatus (including cassette players), not incorporating a sound recording device

Ferro alloys

Electric instantaneous or storage water heaters and immersion heaters

Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal

Containing by weight more than 2 of carbon

Electric space heating apparatus and electric soil heating apparatus

Electrical motors and generators (excluding generating sets)

Machinery with a 360 revolving superstructure

Terrence Ross Terry Jacks (born March 29, 1944, Winnipeg, Manitoba) is a Canadian singer, songwriter, record producer and environmentalist, best known for his 1974 hit song Seasons in the Sun .

Cards incorporating a recorded magnetic stripe

Magnetic discs, unrecorded

Cards incorporating an unrecorded magnetic stripe

Electric space heating apparatus and electric soil heating apparatus

Portable electric lamps designed to function by their own source of energy (for example, dry batteries, accumulators, magnetos) (excluding lighting equipment of heading 85.12)

Liquid filled radiators

Electric instantaneous or storage water heaters and immersion heaters electric space heating apparatus and soil heating apparatus electro thermic hair dressing apparatus (for example, hair dryers, hair curlers, curling tong heaters) and hand dryers electric smoothing irons other electro thermic appliances of a kind used for domestic purposes electric heating resistors (excluding those of heading 85.45)

Of a capacity of 50 l or more

Electric, magnetic, electromagnetic fields

And actually, the magnetic fields we're using are basically about the same as the Earth's magnetic field.

A magnetic field is the magnetic effect of electric currents and magnetic materials.

Magnetic fields are created, purely by interaction of magnetic fields of the planet.

Magnetic fields are invisible.

Of an output exceeding 750 kVA

Generating sets with compression ignition internal combustion piston engines (diesel or semi diesel engines)

Parts of electric accumulators

Use of electric magnetic brakes

Those magnetic exploders are driving us all crazy.

Other, of circular cross section measuring in diameter

Clock or watch glasses and similar glasses, glasses for non corrective or corrective spectacles, curved, bent, hollowed or the like, not optically worked hollow glass spheres and their segments, for the manufacture of such glasses

Less than 80 mm

Blood sample collection tubes

Magnetometers , magnetic gradiometers , intrinsic magnetic gradiometers and compensation systems, and specially designed components therefor, as follows

First, I'm going to show you that this is a magnetic pulse.

We want to get clo... further, we increase the magnetic field.

They can sense the magnetic fields of the earth.

Superconducting magnets can produce intense magnetic fields.

They can sense the magnetic fields of the earth.

We increase the magnetic fields of our system.

The magnetic fields of the other giant planets are roughly similar in strength to that of Earth, but their magnetic moments are significantly larger.

Bearing housings, incorporating ball or roller bearings, for machines of a kind used in aircraft and spacecraft

So, gravitational fields are magnetic field based.

You are still using the magnetic fields of matter.

Ignition magnetos, magneto dynamos and magnetic flywheels, for spark ignition or compression ignition internal combustion engines