DESCRIPTION:
A strange seesaw powers a computer.

Original music composed, played & produced by William Adams, WAMP 2013.
Animation concept/ creation by William Adams, WAMP 2013.

Signal:
noun
1 a gesture, action, or sound that is used to convey information or instructions, typically by prearrangement between the parties concerned : the firing of the gun was the signal for a chain of beacons to be lit | [with infinitive ] the policeman raised his hand as a signal to stop. See note at sign .
• an indication of a state of affairs : the markets are waiting for a clear signal about the direction of policy.
• an event or statement that provides the impulse or occasion for something specified to happen : the champion's announcement that he was retiring was the signal for scores of journalists to gather at his last match.
• an apparatus on a railroad, typically a colored light or a semaphore, giving indications to train engineers of whether or not the line is clear.
• Bridge a prearranged convention of bidding or play intended to convey information to one's partner.
2 an electrical impulse or radio wave transmitted or received : equipment for receiving TV signals.
verb ( -naled |ˈsɪgnəld|, -naling |ˈsɪgnəlɪŋ|; chiefly Brit. -nalled, -nalling) [ intrans. ]
transmit information or instructions by means of a gesture, action, or sound : hold your fire until I signal.
• [ trans. ] instruct (someone) to do something by means of gestures or signs rather than explicit orders : she signaled Charlotte to be silent.
• (of a cyclist, motorist, or vehicle) indicate an intention to turn in a specified direction using an extended arm or flashing indicator : [with complement ] Stone signaled right | [with infinitive ] the truck signaled to turn left.
• [ trans. ] indicate the existence or occurrence of (something) by actions or sounds : they could signal displeasure by refusing to cooperate.
• [with clause ] give an indication of a state of affairs : she gave a glance that signaled that her father was being secretive.
DERIVATIVES
signaler |ˈsɪgnələr| noun
ORIGIN late Middle English : from Old French, from medieval Latin signale, neuter of late Latin signalis, from Latin signum 'mark, token' (see sign ). The verb dates from the early 19th cent.
signal 2 |ˈsɪgnəl| |ˈsɪgn(ə)l|
adjective [ attrib. ]
striking in extent, seriousness, or importance; outstanding : he attacked the administration for its signal failure of leadership.
DERIVATIVES
signally |ˈsɪgnəli| adverb
ORIGIN early 17th cent.: from French signalé, from the Italian past participle segnalato 'distinguished, made illustrious,' from segnale 'a signal.'

Paid:
paid |pād|
past and past participle of pay 1 .
adjective
(of work or leave) for or during which one receives pay : a one-month paid vacation.
• [ attrib. ] (of a person in a specified occupation) in receipt of pay : a paid, anonymous informer.
pay 1 |pā| |peɪ| |peɪ|
verb ( past paid |peɪd| |peɪd|)
1 [ trans. ] give (someone) money that is due for work done, goods received, or a debt incurred : [ trans. ] he paid the locals to pick his coffee beans | [ intrans. ] TV licenses can be paid for by direct debit.
• give (a sum of money) in exchange for goods or work done or in discharge of a debt : he paid $1,000 to have it built in 1977 | [with two objs. ] a museum paid him a four-figure sum for it.
• hand over or transfer the amount due of (a debt, wages, etc.) to someone : bonuses were paid to savers whose policies completed their full term.
• (of work, an investment, etc.) yield or provide someone with (a specified sum of money) : jobs that pay $5 or $6 an hour.
• [ intrans. ] (of a business or undertaking, or an attitude) be profitable or advantageous to someone : crime doesn't pay | [with infinitive ] it pays to choose varieties carefully.
2 [ intrans. ] suffer a loss or other misfortune as a consequence of an action : the destroyer responsible for these atrocities would have to pay with his life.
• [ trans. ] give what is due or deserved to (someone); reward or punish.
3 [with two objs. ] give or bestow (attention, respect, or a compliment) on (someone) : no one paid them any attention.
• make (a visit or a call) to (someone) : she has been prevailed upon to pay us a visit.
noun
the money paid to someone for regular work : those working on contract may receive higher rates of pay | showing up and collecting your pay.

DERIVATIVES
payer |ˈpeɪər| noun
ORIGIN Middle English (in the sense [pacify] ): from Old French paie (noun), payer (verb), from Latin pacare 'appease,' from pax, pac- 'peace.' The notion of [payment] arose from the sense of [pacifying] a creditor.
pay 2 |peɪ| |peɪ|
verb ( past and past part. payed) [ trans. ] Nautical
seal (the deck or hull seams of a wooden ship) with pitch or tar to prevent leakage.
ORIGIN early 17th cent.: from Old Northern French peier, from Latin picare, from pix, pic- 'pitch.'

*Apple Dictionary