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September 13, 2007

To The Moon!

Filed under: Commentary,Robots,Space Exploration — Bob @ 7:45 pm

Today Google and the X Prize Foundation revealed their latest challenge: a potential $20 million (and up to $30 million including the bonus challenges) for landing a robot on the moon, roam around a little bit, and send back some video.

Hmmm. Sounds very interesting and is likely a very difficult problem. My first thoughts about the challenge:

  • Roaming around on the surface of the moon will be very dusty, thus any exposed gears or moving parts will be gunked up in about 10 seconds
  • I have no idea what vacuum does to gear motors, electronics, etc. but you gotta believe it will be different than roaming around in my living room
  • Landing on the moon is very challenging; many of the early Russian and US probes crashed
  • Soft-landing is hard because there isn’t any atmosphere for parachutes, but air bags might help (I don’t know if anyone has tried this though, I believe rockets are the conventional approach to control descent velocity)
  • Sending back good quality video probably isn’t terribly difficult but having a camera that operates after a rough landing and operating in vacuum might be; I have no idea how difficult the antenna aiming would be but I’d expect you could rent time on some serious radio telescopes here on Earth to receive the stream once it was directed in the right direction
  • I recall the Russians succeeded in landing a tele-operated rover Lunokhod 1 back in 1970 but likely cost way more than $30 million
  • The Lunokhod probes were very successful and not a bad model for this challenge
  • Lifting a robot to outer space and on to the moon is really difficult – just to get to orbit requires accelerating to greater than 8,000 meters per second – and I imagine efficient navigation to the moon is quite delicate too
  • There is a lot of information available about potential landing sites but to really maximize the prize money you’d have to land near something else (like a NASA Lunar Module or Lunokhod 1)
  • It is probably worthwhile to budget for multiple attempts, especially in terms of that soft landing

I’m am really excited about this contest. I doubt I have a chance to participate but you can believe I’m going to follow whomever does make the attempt.

What do you think about this contest? How would you solve some of these problems?

April 18, 2007

How stupid are eBay buyers?

Filed under: Commentary,World Wide Web — Bob @ 8:09 pm

If you saw an item on eBay titled “$$ NEW IN BOX WII VIDEO GAME CONSOLE WHOLESALE LIST $$” that was listed for $99 USD would you buy one?

Likely you would if you are as smart as the average pet rock.

The seller (derek34786) posts big headlines such as “SAVE HUNDREDS OR THOUSANDS OF DOLLARS WITH THIS WHOLESALE LIST FOR WII VIDEO GAME CONSOLES”.

Here is the posting: don’t bother with this stupid offer.

The best part is reading the fine print towards the end of the listing. Statements such as “You are not getting what is pictured in the photo” and “Ignorance is not an excuse if you did not read or misread this auction” are strong indications of predatory behavior yet I suspect eBay will be powerless to stop such stupidity due to their own acceptable use policies.

As of 9pm there were nine bidders, with less than 10 minutes remaining. Idiots.

March 24, 2007

Spam selling Stock Spam services?!?

Filed under: Commentary,World Wide Web — Bob @ 7:58 pm

Today I received a spam that neither SpamAssassin or Mozilla Thunderbird caught. The title is “Business proposal for SHARE owners”. It contains the usual random word gibberish on the first and last lines but none of the image spam that has become so popular.

The primary text in this little gem contains an offer to create a “pump and dump” stock spam scheme for my company. The sender claims they have been operating in the U.S. market for three years with huge success, but “now it is getting harder and harder to work on US market”.

The spam’s claim of 200% increase seems wild until you read what the SEC is saying about these schemes. Remember this article? Joel Spolsky wrote an interesting article about this phenomenon a while back; its worth reading if you haven’t seen it before.

Back to the spam under the microscope: it also outlined their handling fee for such an amazing service: 10% of closing price times daily volume. There is no indication of how long this fee applies; maybe indefinitely, sort of like paying protection money to the mafia? There isn’t any offer of a refund the day-over-day share price decreases, but at least (I was assured) there was no upfront payment required.

The spam originated from the networks of ITnet S.p.A. of Genova, Italy. Most likely a hijacked computer that is relaying email.

Have you seen any really unusual or interesting spam recently?

May 28, 2006

Trip to the Flat Land

Filed under: Books,Commentary,Holidays — Bob @ 7:59 pm

Eileen and I spent the last 10 days in the mid-West of the USA visiting relatives. My mom lives in Michigan while Eileen’s folks live in Indiana and has aunts & uncles in Ohio. We flew out a week ago last Friday on United Airlines from Vancouver to Detroit via Denver. United has figured out that we’d pay a bit more money to sit in more comfortable seats. They’ve invented a new section titled Economy Plus. The seats themselves are the same as the rest of the plane but you get more leg-room for $44 per seat, each flight. The trick is to check-in early – you can only purchase this “upgrade” when you get your boarding pass (we did it at the electronic check-in machines) otherwise you take your chances. Glad to see the North American airlines starting to find interesting ways to improve the travel experience as well as improve their bottom line. British Airways has been doing this sort of thing for years with good success.

The USA looks pretty much the same as I remember, but the complaints are new. We heard plenty about the outrageous price of gasoline and also about how illegal immigrants were ruining the country. Oh my. The gasoline thing is especially funny because nearly two-thirds of the cars on the road are SUVs (we counted). Eileen says the number of SUVs purchased each year in the USA continues to increase, although I was unable to find a reference that supported or denied that claim. Gasoline was something like US$2.80 per gallon, which would equate to CDN$0.82 per litre. For comparison, here in Vancouver its CDN$1.20 per litre, or about US$4.11 per gallon. We laughed so hard we snorted.

The immigrant thing was more sad than funny, its a hot-button issue that most people don’t really think too carefully about. The economy of the USA is dependent on the immigrant work force in ways that probably can’t even be predicted. For example, immigrant workers keep the cost of farm labor low, thus making it possible for domestic farms to remain competitive with imports. Food costs remain low and many people (illegal immigrants as well as citizens) are employed. The low cost of food means the general cost of living is lower for everyone. Low cost of living means higher discretionary income which is usually spent on luxury goods which further fuels economic growth. If you eliminate the low-cost labor on those farms, will it negatively effect the entire economy? Maybe. I don’t really know, and I don’t think its entirely predictable.

Don’t misunderstand me, I don’t think illegal immigrants are preferrable to legal immigrants. It’s just that the current situation is complicated and perhaps making hasty decisions and drastic changes isn’t wise.

I’ve been reading Collapse by Jared Diamond. The subtitle is How Societies Choose to Fail or Succeed and it discusses (with incredible detail) a number of factors that can lead to a particular society such as Easter Island or the Norse in Greenland to completely fail. Its well written and very interesting. This book talks about how societies become entangled in their own history, location, habits, and neighbors in interesting ways that sometimes turns out quite bad. And sometimes it works out ok, but it is very hard to predict the outcome ahead of time with any certainity. I think about the current situation regarding immigration in the USA in similar terms.

The other sad part of the immigration debate is that people seem generally unaware of the need for immigration in order to continue the existing standard of living for retired people. By 2011 there will be more people retired than working. The number of people retiring each year will continue to rise, leading to a significant problem where the taxes paid by those still working will be insufficient to pay for those who aren’t. The existing population in the USA and Canada (and probably other places) isn’t increasing fast enough to offset those who are retiring, and without working immigrants to make up the difference the government sponsered retirement funds will collapse.

The trip wasn’t completely doom-and-gloom however. My sister came to my mom’s house with her two-year-old daughter to visit from North Carolina. I hadn’t met her daughter before so that was really great. My mom is doing well too, and Eileen’s folks are getting along just fine. We also caught up with some friends and spent a couple of hours walking around the campus of Michigan State University where Eileen and I met. The campus there is really beautiful and the day we went was bright, very sunny and warm.

05-25-06_1903.jpgThe other thing we noticed – the place is flat by comparison to Vancouver. Some parts are so flat you can virtually see into next week. This terrain leads to tremendous wind storms and quick changes in weather. We sat on the back deck of her aunt’s house and watched a thunderstorm come in over the horizon. Within minutes the wind was whipping around and the rain was pouring down in bucketfuls. It rained and thundered for a half-hour or so then stopped. I grabbed a picture with my phone, it seems to be clear enough to demonstrate all points.

Tomorrow we’ll go back to the office and try to catch up from being away.

May 8, 2006

Fun With A RAZR

Filed under: Commentary,Software — Bob @ 9:08 pm

clgif_v3_1.jpgI bought a Motorola RAZR phone the other day to replace my aged Ericsson T28. I’m not a “phone person” nor a “gadget person” but I do like to have a mobile phone. I long ago figured out that its worth paying more for the convenience of small, thin, light electronics.

What has really surprised me is the subculture of people who “hack” these sophisticated phones. Sometimes its about removing the software locks set by the carrier, other times its just about changing the skins or uploading new games. Some sites offer alternate firmware to download to your phone. Try googling for “hack mobile phone {brand name}” and you’ll see what I mean.

I think this is sort of like hot rodding cars. When I was a teenager it was very cool to enhance a car in interesting ways. Replacing engines, transmissions, suspension, etc. was not at all unusual. Custom paint with multiple layers of clear coat was standard. I’ve heard that car mods are still popular but nothing like it was. Now its all about firmware tweaks or bolt-on wings or such. I miss days of the big fat tires with expensive chrome wheels and super-thin pin stripping painted by hand.

I guess I’m getting old. Sigh.

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