Funny that you mention drilling and hurdles. Drilling requires a platform which should be (as other posters pointed out) heavy and low to the ground. Hurdles, as in boulders, are much easier to handle with lighter vehicles with plenty of ground clearance (so they can "Get over it"). So here we have two key requirements that are fundamentally at odds with one another, that's just one of the many reasons "this is so hard!"
FYI, the way Scarab solves the problem is with a nice combination of pitch averaging and variable wheel base.
As a matter of fact it does. As a mockup it ran Ubuntu. A month ago that changed, it's now a version of Fedora Core from a few years (for better compatibility with another robot).
That is indeed the case on the autonomy side (ie, follow the mission plan without hitting anything). Most of the ideas and code have evolved through Life in the Atacama a few years ago. In many cases they were developed (either in the design or programming sense) earlier and really hit their stride on that project.
My coworkers and I have taken Dell laptops to many remote sites. Over several month long trips they all survived deserts, jungles, a New Hampshire winter and really lousy power infrastructure.. I've personally submitted my laptops to extreme dust, moderately high temperature range, high humidity and moderately high altitude. Just to get the frame of reference; my first machine was inherited from an Antarctic trip and I took it to the Atacama (40C and 3km).
I like my current 700m the best.
Pros: small, light, runs cool, good outdoor screen visibility, 4-5 hour battery life
Cons: CF slot and external monitor don't work (I run Linux and assume they work fine under Windows, haven't tried very hard to get them working), poor AC adapter design only lasts a few trips (we've gotten half a dozen replaced)
The older 8200s weren't bad either.
Pros: extra bays, more ports than the 700m (but no firewire)
Cons: a bit more bulky, no integrated wireless, venting was too generous (tilt it once a week to pour out sand), poor hinge design resulting in eventual screen failure
The 5150s suck for this sort of trip.
Pros: very powerful
Cons: very heavy, big, power hogs, one of ours died when plugged in to AC at a mining camp (the others survived fine)
So basically I'm saying get a 700m, they're plenty tough.
And I'm not affiliated with Dell, but my University has a contract with them.
On a related note, since I wasn't specing I have no clue how much they were or what we got that wasn't part of the 'base' system.
From the article: "There actually are Web sites that mock this mess by showing the simplest CSS code and the differing results from the three main browsers and the Safari and Linux browsers."
Does anyone have a link to these sorts of sites that he mentions?
Chile is indeed teeming with the stuff. A little over a year ago I met a guy near Salar Grande (quite a bit north of Chuquicamata) that was literally carting ore in a wheelbarrow. You can find abandoned pits all over the place, they have stacked piles of rocks of various shades of green (sometimes bluish too). It's hard to imagine this debris being an essential and dwindling resource.
The "Old news" doesn't seem to be available in English so I looked through the Polish version.
It seems he got his first letter April 24, 2002 and from the blog-like commentary he decided not to fight it. I think the key to Marek's thinking is in the last item on 05.05.2002. My translation: "It's pointless to offer a game that differs from the original only in the layout of the board and the name --it would be better to offer a different game, one that might compete [with Scrabble(tm)]." I can't help but agree with this insight, rather than making a clone, use the C&D letter as an opportunity to improve upon the game and let the public decide what they want to play.
Consequently Literaxx (or "Literakki;-)" in Polish, with the emoticon as part of the name) actually has some significant differences (improvements?) from Scrabble. In particular, the color of the letter determines it's value and the value is tripled if played on a square of the same color.
Slashdot Mirror
FYI, the way Scarab solves the problem is with a nice combination of pitch averaging and variable wheel base.
As a matter of fact it does. As a mockup it ran Ubuntu. A month ago that changed, it's now a version of Fedora Core from a few years (for better compatibility with another robot).
That is indeed the case on the autonomy side (ie, follow the mission plan without hitting anything). Most of the ideas and code have evolved through Life in the Atacama a few years ago. In many cases they were developed (either in the design or programming sense) earlier and really hit their stride on that project.
Sounds like End System Multicast (ESM)
- I like my current 700m the best.
-
Pros: small, light, runs cool, good outdoor screen visibility, 4-5 hour battery life
-
Cons: CF slot and external monitor don't work (I run Linux and assume they work fine under Windows, haven't tried very hard to get them working), poor AC adapter design only lasts a few trips (we've gotten half a dozen replaced)
-
The older 8200s weren't bad either.
-
Pros: extra bays, more ports than the 700m (but no firewire)
-
Cons: a bit more bulky, no integrated wireless, venting was too generous (tilt it once a week to pour out sand), poor hinge design resulting in eventual screen failure
-
The 5150s suck for this sort of trip.
-
Pros: very powerful
-
Cons: very heavy, big, power hogs, one of ours died when plugged in to AC at a mining camp (the others survived fine)
So basically I'm saying get a 700m, they're plenty tough. And I'm not affiliated with Dell, but my University has a contract with them. On a related note, since I wasn't specing I have no clue how much they were or what we got that wasn't part of the 'base' system.From the article: "There actually are Web sites that mock this mess by showing the simplest CSS code and the differing results from the three main browsers and the Safari and Linux browsers." Does anyone have a link to these sorts of sites that he mentions?
Warning, may contain traces of 2s.
Chile is indeed teeming with the stuff. A little over a year ago I met a guy near Salar Grande (quite a bit north of Chuquicamata) that was literally carting ore in a wheelbarrow. You can find abandoned pits all over the place, they have stacked piles of rocks of various shades of green (sometimes bluish too). It's hard to imagine this debris being an essential and dwindling resource.
The "Old news" doesn't seem to be available in English so I looked through the Polish version. It seems he got his first letter April 24, 2002 and from the blog-like commentary he decided not to fight it. I think the key to Marek's thinking is in the last item on 05.05.2002. My translation: "It's pointless to offer a game that differs from the original only in the layout of the board and the name --it would be better to offer a different game, one that might compete [with Scrabble(tm)]." I can't help but agree with this insight, rather than making a clone, use the C&D letter as an opportunity to improve upon the game and let the public decide what they want to play.
Consequently Literaxx (or "Literakki ;-)" in Polish, with the emoticon as part of the name) actually has some significant differences (improvements?) from Scrabble. In particular, the color of the letter determines it's value and the value is tripled if played on a square of the same color.