I do this. It's quite fun. It's very interesting to draw parallels between 13th century manuscripts and east-asian martial arts as well. The biggest difference between a longsword and swords like the japanese katana is that katanas only (well, mostly) do cuts, while the longsword do both cuts and strikes. The longswords are usually called 1½-handers, because you have one hand firmly and one hand flexible (loose). They are fascinatingly light - I have a huge one, and it's only 2kg - and balanced just above the handle. (From the great czech swordsmith Pavel Moc.)
The Neato is about 3mm taller than the Roomba, and gets stuck (actually stuck, have to use a bit of force to get it out) under the furniture all the time. :) But both of them happily gets stuck on thresholds...
I want to see a real comparison between this and a modern Roomba (880).
The issues I had with my Roombas (since 2005) have been that hair has gotten into the mechanism and slowly destroyed gearboxes, that the same hair have been an awful lot of work to clean the brushes and that the batteries dies after a few years. I've never had a problem with it not cleaning properly.
I haven't seen anything about addressing those problems. The Roomba 880 addressed the hair problem - or so they say.
I also have a Neato for comparison, another actually mapping/navigating bot. It also doesn't have the corner/side brush, so it never cleans properly next to the walls. I assume the Dyson will have the same issue there - in their video they show that the side brushes don't always work (always worked fine on my Roomba) but doesn't offer a better solution.
But what in the end will keep me off the Dyson is that it wont clean under my furniture. It's too high.
That's below 300mph. ("The Beast can reach speeds up to 300mph.")
Camera shutters can only do something like 1/10000th anyway, so you should only need to calculate the worst case of the car sign being too blurry over that timeframe. If the car needs to move 1 meter for the sign to be blurry, it only needs to go 10000m/s - much slower than the redshift calculation.
I'm actually impressed that a car going 100m/s (sync times of 10ms) seems to work perfectly fine (that's 236mph).
With sync time I mean the time from measure to reaction to running the shutter and flash.
Also see the other Mythbuster episode where they tried to beat it with a street-legal supercar.
Why not just add "American-" to them if that's a problem? "American Roquefort". Done. You could simplify the spelling while you're on it. "American Rockfort"... ;)
They got the question about the moss wrong, I don't think they would survive very long in the wilderness. Anyone that has spent any longer time in the forest actually looking at trees knows that where moth grows is seriously randomized. You need a quite large (and random) sample to spot the predominance of moss to grow on the north side. Don't ever try to use it for navigation.
http://www.neatorama.com/2013/07/17/Stilettos-and-Schizophrenia/
The article isn't really recent:
http://www.theguardian.com/education/2004/nov/16/research.highereducation
Although usually they drill straight down into the granite instead.
The issues I had with my Roombas (since 2005) have been that hair has gotten into the mechanism and slowly destroyed gearboxes, that the same hair have been an awful lot of work to clean the brushes and that the batteries dies after a few years. I've never had a problem with it not cleaning properly.
I haven't seen anything about addressing those problems. The Roomba 880 addressed the hair problem - or so they say.
I also have a Neato for comparison, another actually mapping/navigating bot. It also doesn't have the corner/side brush, so it never cleans properly next to the walls. I assume the Dyson will have the same issue there - in their video they show that the side brushes don't always work (always worked fine on my Roomba) but doesn't offer a better solution.
But what in the end will keep me off the Dyson is that it wont clean under my furniture. It's too high.
I guess I haven't really been following the new stuff much since Netscape introduced the repeat tag for GIFs and the internet got flooded.
"I have read everything on the web. What should I do now?" /friend in the lab, 1993
More like minus 59 minutes, which makes it cost minus €885 per hour (in other words, they give you €885 per hour to try it).
But I see Antonio Ingles beat me to it.
Original work by David Olkarny: http://www.david-olkarny.com/
http://www.colorvaleactions.com/blog/weekly-featured-photographer-david-olkarny/
A very good photographer, worth checking out.
https://www.youtube.com/watch?v=t4pE1KBsWb0
That's below 300mph. ("The Beast can reach speeds up to 300mph.")
Camera shutters can only do something like 1/10000th anyway, so you should only need to calculate the worst case of the car sign being too blurry over that timeframe. If the car needs to move 1 meter for the sign to be blurry, it only needs to go 10000m/s - much slower than the redshift calculation.
I'm actually impressed that a car going 100m/s (sync times of 10ms) seems to work perfectly fine (that's 236mph).
With sync time I mean the time from measure to reaction to running the shutter and flash.
Also see the other Mythbuster episode where they tried to beat it with a street-legal supercar.
You could simplify the spelling while you're on it. "American Rockfort"... ;)
Anyone that has spent any longer time in the forest actually looking at trees knows that where moth grows is seriously randomized. You need a quite large (and random) sample to spot the predominance of moss to grow on the north side. Don't ever try to use it for navigation.
Use your wristwatch and the sun instead.
But fun fact: There's a correlation between dogs uhm direction and north. Maybe you should bring a dog.
http://www.pbs.org/newshour/rundown/2014/01/dogs-poop-in-alignment-with-earths-magnetic-field-study-finds.html