Science Festival 2011

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Science Festival 2011 Science Festivel 2011
Type of Event:	Event
From:	2011/11/10 08:00:00 AM
Till:	2011/11/13 07:00:00 PM
Recurring:	no
Organizer:	syn2cat
Cost:	0 EUR0 $ 0 £ 0 CHF
Mandatory registration:
Attendees:	Nick17, Kwisatz Log-in to RSVP
Contact Person(s):	Gunstick (mail)
Keywords:
Location
Where:	Hackerspace, Strassen (11, rue du Cimetière, L-8018 Strassen, Luxembourg)
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Announce globally:	no

Mechanical Logic: build logic gates from LEGO and see a mechanical binary calculator do it's work

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Participants

Fill in this table to tell your participation.

build	9th(setup)	10th	11th	12th	13th
				kwisatz	kwisatz
nick17	?	nick17	nick17
Gunstick	Gunstick			Gunstick	Gunstick

Logic gates

Same logic, a bit rearranges and replaced the first full adder with a half adder. Note that the carry dost not really need to be connected completely to the left.

Lego

• full adder built from Lego
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  LegoFullAdderWithDispl...
  

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  LegoHalfAdderBits.jpg
  

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  LegoHalfAdderCarry.jpg
  

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  LegoOrGate.jpg
  

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  LegoDigitalAnalogConve...
  

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  LegoDisplayUnit.jpg
  

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  LegoFullAdderView.jpg
  

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  LegoFullAdderActionInp...
  

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  LegoFullAdderActionRes...
  

Copper

Half adder built out of copper. The marbles replace the fingers pushing the buttons of the Lego version. The marbles will propagate the bit flow to the next logic gates. In the middle you can see the XOR-AND mechanical combination as known from the Lego version which does the logic. The marbles flowing into the input are "lost", like in a real logic circuit. And new marbles are released at the bottom depending on the logic decision.