Science Festival 2011

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Science Festival 2011
Science Festivel 2011
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Type of Event: Event
From: 2011/11/10 08:00:00 AM
Till: 2011/11/13 07:00:00 PM
Recurring: no
Organizer: mnhn
Cost: 0 EUR0 $
0 £
0 CHF
Mandatory registration:


Attendees: Nick17, Kwisatz, Lala, Sid
Log-in to RSVP
Contact Person(s): Gunstick (mail)
Keywords:
Location
Where: MNHN, Luxembourg (25, rue Münster, L-2160 Luxembourg, Luxembourg)
Map:
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Tools
QrCode: QR-784378b28d63bff9f41819f5bb0fe8d3.png
Add to your calendar: Download … further results
Alternate picture: None
Announce globally: no
Mechanical Logic: build logic gates from LEGO and see a mechanical binary calculator do its work



Contents

[edit] Participants

Fill in this table to tell your participation.

build 9th (setup) 10th 11th 12th 13th (includes teardown)
kwisatz
nick17 nick17 nick17 nick17 nick17 nick17
Gunstick Gunstick Gunstick Gunstick Gunstick Gunstick
iThierry  ?  ? iThierry iThierry
Kris
NPU NPU NPU NPU NPU NPU
Guy
Pascal
 ? Lala Lala  ?  ?
Sid Sid Sid Sid


[edit] Logic gates

See also the wikipedia article on adders

4-bit-full-adder.png

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.

3.5bitAdder.png

[edit] Lego


[edit] 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.


[edit] Copper Model



[edit] Photos

Box built 11%2B-%2B1.jpg

Ready for shipping 11%2B-%2B1.jpg

Artist's view 11%2B-%2B1.jpg


[edit] Videos

Almost finished: first calculation ever. Switch on annotations to see some more info.

Running only the clock

Only the overflow track

Final version, before packaging for delivery to science festival

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