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Comment Real-world case (Score 1) 258 258

In the parliamentary elections of September 2013, more than 250 000 Norwegians in selected municipalities were able to vote from home. They were taking part in a national trial of Internet voting, building on an advanced cryptographic protocol. Follow the link below for a talk about the technology behind it, presented at the last Chaos Computer Conference by Tor E. BjÃrstad

Comment Re:why dont they spin it? and land it in a silo? (Score 1) 342 342

The spinning would have to be slow enough that you could either gimbal the nozzle or modulate the thrust at the same frequency as the spinning. I don't know which of the two controls is faster. I don't know about the economics of this. It's probably not economical.

Comment why dont they spin it? and land it in a silo? (Score 2) 342 342

A bit of rotation should help to keep the thing upright. The gases being pushed into the silo will be forced towards the walls on their way back out and help center the rocket as it enters the silo. A funnel-shaped silo is easy to hit and provides a soft cushion as the pressure of the backscattered gas increases as the rocket descends into it. Finally, a rotating platform at the bottom needs to be synchronized to the rocket's own rotation. Good Thing I don't have the billions it would take to see my brilliant ideas crash and burn.

Comment Re:Are there open source tools... (Score 1) 64 64

I have no such illusions. But I would expect open source tools to at least function equally across FPGA brands, at least to the extent that people are able to reverse engineer the bitstream formats of the various architectures. The quality of software in general correlates strongly with the amount of manpower that is put into it, which again correlates strongly with funding. On that note, I think the case could be made that some FPGA producers would benefit from an open source and cross-platform toolstack, particularly those that are not currently market leaders.

Comment Re:Are there open source tools... (Score 2) 64 64

There are several open source vhdl / verilog projects, including tools for simulation and synthesis, mapping, placing and routing. Examples: HANA, yosys, Icarus. But I guess you usually get better results with the free-as-in-beer tools from the fpga manufacturers. Which is a shame, since it would be nice to have some open source tools. Although everyone use the same hardware definition languages, it is a pain in the neck to switch between FPGA brands, mostly because the build tools are different and all pretty quirky.

Do not underestimate the value of print statements for debugging.