Archived challenges

These are the challenges that have expired or been solved.

4 500.00 USD

Frame-dragging effect

Submission deadline: Mar 15, 2010

10 000.00 USD

3-D reconstruction of interior building structure

Submission deadline: Mar 15, 2010

5 000.00 USD

Low-cost high precision clock

Submission deadline: Mar 15, 2010

15 000.00 USD

Mechanical system design for automatic cable reeling and compact storage on drum

Submission deadline: Mar 15, 2010

5 000.00 USD

Boarding team support

Submission deadline: Mar 15, 2010

USD

save for biodegradable batterie

Submission deadline: Jan 25, 2010

12 000.00 USD

On-line locating of underground medium-voltage cable joints - Part 1

Submission deadline: Jan 25, 2010

14 000.00 USD

Seeking a smooth & creamy bake stable non-sweet intermediate moisture filling

Submission deadline: Jan 25, 2010

30 000.00 USD

Biodegradable home made plastic

Submission deadline: Jan 8, 2010

3 000.00 USD

Solution Distribution For Evaluators

Submission deadline: Sep 1, 2009

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