By the way you just described how ethernet works as well, which is relevant to the article. Inverting and adding the "mirror" signal cancels a huge amount of the noise. Do you twist balanced cables around each other too?
Darktide is PvP only. Everyone is PKable, lootable or in AC speak "Red". There is no way to prevent yourself from being killed by a fellow player anywhere in the game. This makes getting and keeping good equipment a major part of the game, a game in which loot is a big, big deal.
All other servers allowed players to PvP through a special quest, but the default was non-PK or "carebear". Non-PK players show up on the radar as white dots. PK-able players at a red dot. Also a "lite" version was available that allowed PKing but not looting. They show up as pink on the radar screen. Carebear servers allow players to accumulate equipment while "white" and then swtich to "red". This changes the dynamic of PKing a great deal away from Darktide.
In it's day Darktide was the most hardcore PK scene in MMO-land and guilds such as Blood ruled the server.
Your suggestions for the metal shop are a little over the top for a child or teen, in my opinion. Most parents are not going to build a plasma table for $2500 or buy one for $8k+ for their 6th grader's science fair project.
A perfectly useful alternative is www.emachineshop.com They have some custom CAD software that you can use to design and upload your parts. They use their waterjets, CO2 lasers, plasma cutters, router tables, etc... to make the parts and then ship them back to you. For more basic needs you can do a lot with files, a hacksaw, a drill press and snips. It takes longer but kids have time.
Table saws are pretty dangerous, even for adults. Band saws, somewhat less so, but they like to peel off thumbs. I had to use hand saws growing up. It takes a lot of patience to cut through a 2x4 at ten years old and 80 pounds. That was a valuable experience. The other thing it teaches is improvisation. The constraint of having to cut by hand leads you to think of alternatives, using what is available and ready. That's the real lesson - that and patience.
He is probably from the US. It helps to understand that the US has many areas that are not dense enough to support a significant police presence. The police will take twenty minutes to mount a response. Historically the majority of the country was this way.
Because of this the US has a tradition of firearm ownership for protection of the "homestead" that is respected and maintained even as larger areas are urbanized and existing urban areas become more violent. Honestly, the police in many areas probably expect you to fend for yourself for those first twenty minutes. They get involved after the fact if at all. In high crime areas, a burglary like this will not receive any significant attention.
Europe and the UK are just not set up this way. They have a history of feudal governments that actively disarmed the population, much higher population densities and a post-war inclination towards pacifism. Different strokes for different folks. A common deterent in the US is a sign on the lawn or door that reads, "Protected by Smith and Wesson", a firearms maker, if you don't know.
That's why security cameras use IR LED arrays to wash IR light over the area. The CCDs are sensitive to the IR, unlike our eyes, so it creates a decent black and white image in total darkness (for us). Retina's reflect IR like crazy, which is why you'll see "demon eyes" on people when using IR. I'm sure you've seen it before.
Those emissions testors are looking for specific chemicals in fuels that would not normally contain, for example, arsenic. I'm going to drop it here. Congratulations on the fuel savings and I doubt you are doing a whole lot of damage, if any, individually.
Higher temperature in your diesel engine but MUCH lower burn time. Waste oil burners have a long flame tube to allow complete combustion. That is not the case in your diesel engine which is certainly producting toxic exhaust fumes. You seem to be well educated on engines, diesel and the like. Please read up on what you could be sending out your tailpipe.
You are thinking of Kudzu and yes it grows like crazy. I think by weight it is not particularly "woody", IE not that much celluose but lots of water. Most plans for biomass production involve switch grass, poplar, willow or bamboo for dry kg/acre but kudzu is being investigated.
There is in fact research into regrowth of fatty breast tissue from stem cells. There are a number of reasons for pursuing "natural" materials for reconstruction. For total reconstructions due to mastectomy, birth defect or injury the man-made implants are not cosmetically convincing. Some women are allergic or otherwise do not tolerate silcone in the implant envelope. Many women are not excited about having foreign material implanted in their bodies and especially for mastectomies would prefer to be reconstructed with their "own" tissues. It's a prosthetic versus regrowth issue... just like it is for the rest of the article.
How about an analogy: If you lost your pecker, would you like to have prosthetic replacement implanted under grafted skin or a regrown, fully functioning "member" from your own stem cells just like the original.
I was thinking the same thing. Perhaps the Dashboard software is the critical element and OpenWRT does not have a multi-node administration feature.
It sounds like the group in the article has an open source alternative already. Perhaps they just need to adapt to it the linksys hardware? I'd think having the code in hand for a project like OpenWRT would make that massively easier. All the hooks are nicely exposed in OpenWRT. It is one of the most impressive firmware replacement projects out there.
Nethack has a lot of interesting game play involving alteration/destruction of the environment. Obviously the "rendering" engine makes this much easier, but the logic has become very complex.
You can freeze lava into earth and water into ice and then dig into the same to create a hole. You can walk across a river by freezing it and melt it back to water with fire to prevent a mob from following. You can dig through walls, insert doors in open cavities, dig through the floor, and chop down trees. A common phrase among nethack players is TDTOE "The devs think of everything".
This extra detail leads to a lot of creative game play. Obviously in a realistic 3-D simulation that takes a lot more coding, but there is a pay-off, certainly in replay value as you try different ways of solving problems.
Explicitly handling dynamically changing environment requires the same functionality needed for computer generated random environments. Creative gameplay plus new random environments with each game? That's really big payoff and that's why people still play Nethack despite the absurdly primitive graphics.
There are truely automonous weapons out there already: land mines
Secondarily there are cluster munitions that do automatic target selection within the drop zone. They are perhaps part of a more broad catagory of autonomous target selecting munitions such as homing turpedos and missiles.
The point is that the phenomenon is occuring out in space on a huge scale at a huge distance. It is not something occuring on Earth or even in our solar system.
I agree that "dark matter" is not necessarily the cause. It could be a gravity wave or some other mechanism not associated with mass.
You are throwing up your hands WAY too soon and crying occam's razor.
Atmospheric distortions are not consistent over time or different locations and those distortions do not "lense" like gravity does. Also standard astronomic technique is to have someone confirm your results with a different telescope, in a different part of the world.
It may not be dark matter, but it's not a smudge on their mirror either.
One motivation is to avoid producing a lot of orbitting debris. That was the international beef with China's test of their anti-SAT weapon. Deorbiting debris also burns up, disallowing any intelligence gathering by Russia, China, etc on our spy satellites.
We already have a nanoassembler. It is called a ribosome and works with a subset of molecules called amino acids. These amino acids are quite simple individually and quite useful when combined. We have already experimented with non-biological amino acid molecules and alternative coding (codon) systems.
Synthetic biology is actually progressing quite quickly. The first "killer application", potentially a biologically derived fuel, will provide the capital needed to accelerate the pace of development.
I am not surprised at all that US forces encountered resistance in urban environments. Somalia taught all our enemies how vulnerable US soldiers can be in on the ground in mixed civilian/combatant areas.
Massed combat oustide urban centers would be necessary to drive US soldiers completely out of Iraq. The US has bases out in the desert with equipment and supplies for precisely this reason.
Completely expelling US forces from Iraq would require confronting them as a massed force in non-urban terrain. That would also be sheer suicide for virtually any army on the planet, let alone irregular AQ or Sunni resistance fighters. Let's be realistic here.
Urban combat is very tough for US forces - no doubt - but saying the US was almost kicked out is a farce. So far the US is willing to accept the casualties associated with operating in urban environments. If that willingness goes away, the US may withdraw from the cities or altogether. It won't be a military decision, but a political one.
Sorry but you have this one wrong - converting mains AC to 1mhz is very easy. A common switch mode power supply chops the 50/60hz AC from the wall into a 100khz to 1Mhz waveform with a common (but fast) MOSFET. The chopped signal is then run through a stepdown transformer. The transformer and ripple filtering capacitors in the second stage can be MUCH smaller and more efficient due to the higher input frequency. In this way the high frequency generation is effectively free for a wireless power system, since most DC converter will have a high frequency first stage anyway.
The resonant coupling is the hard part. Switch mode frequency chopping is bog standard.
Slashdot Mirror
By the way you just described how ethernet works as well, which is relevant to the article. Inverting and adding the "mirror" signal cancels a huge amount of the noise. Do you twist balanced cables around each other too?
Darktide is PvP only. Everyone is PKable, lootable or in AC speak "Red". There is no way to prevent yourself from being killed by a fellow player anywhere in the game. This makes getting and keeping good equipment a major part of the game, a game in which loot is a big, big deal.
All other servers allowed players to PvP through a special quest, but the default was non-PK or "carebear". Non-PK players show up on the radar as white dots. PK-able players at a red dot. Also a "lite" version was available that allowed PKing but not looting. They show up as pink on the radar screen. Carebear servers allow players to accumulate equipment while "white" and then swtich to "red". This changes the dynamic of PKing a great deal away from Darktide.
In it's day Darktide was the most hardcore PK scene in MMO-land and guilds such as Blood ruled the server.
Your suggestions for the metal shop are a little over the top for a child or teen, in my opinion. Most parents are not going to build a plasma table for $2500 or buy one for $8k+ for their 6th grader's science fair project.
A perfectly useful alternative is www.emachineshop.com They have some custom CAD software that you can use to design and upload your parts. They use their waterjets, CO2 lasers, plasma cutters, router tables, etc... to make the parts and then ship them back to you. For more basic needs you can do a lot with files, a hacksaw, a drill press and snips. It takes longer but kids have time.
Table saws are pretty dangerous, even for adults. Band saws, somewhat less so, but they like to peel off thumbs. I had to use hand saws growing up. It takes a lot of patience to cut through a 2x4 at ten years old and 80 pounds. That was a valuable experience. The other thing it teaches is improvisation. The constraint of having to cut by hand leads you to think of alternatives, using what is available and ready. That's the real lesson - that and patience.
He is probably from the US. It helps to understand that the US has many areas that are not dense enough to support a significant police presence. The police will take twenty minutes to mount a response. Historically the majority of the country was this way.
Because of this the US has a tradition of firearm ownership for protection of the "homestead" that is respected and maintained even as larger areas are urbanized and existing urban areas become more violent. Honestly, the police in many areas probably expect you to fend for yourself for those first twenty minutes. They get involved after the fact if at all. In high crime areas, a burglary like this will not receive any significant attention.
Europe and the UK are just not set up this way. They have a history of feudal governments that actively disarmed the population, much higher population densities and a post-war inclination towards pacifism. Different strokes for different folks. A common deterent in the US is a sign on the lawn or door that reads, "Protected by Smith and Wesson", a firearms maker, if you don't know.
That's why security cameras use IR LED arrays to wash IR light over the area. The CCDs are sensitive to the IR, unlike our eyes, so it creates a decent black and white image in total darkness (for us). Retina's reflect IR like crazy, which is why you'll see "demon eyes" on people when using IR. I'm sure you've seen it before.
Here's what you'd want to be on the lookout for:
http://www.environmentyukon.gov.yk.ca/monitoringenvironment/EnvironmentActandRegulations/usedoilburn.php
Those emissions testors are looking for specific chemicals in fuels that would not normally contain, for example, arsenic. I'm going to drop it here. Congratulations on the fuel savings and I doubt you are doing a whole lot of damage, if any, individually.
Higher temperature in your diesel engine but MUCH lower burn time. Waste oil burners have a long flame tube to allow complete combustion. That is not the case in your diesel engine which is certainly producting toxic exhaust fumes. You seem to be well educated on engines, diesel and the like. Please read up on what you could be sending out your tailpipe.
Water vapor has lower persistence though because in short order it condenses out of the atmosphere as rain. CO2 sticks around a LONG time.
You are thinking of Kudzu and yes it grows like crazy. I think by weight it is not particularly "woody", IE not that much celluose but lots of water. Most plans for biomass production involve switch grass, poplar, willow or bamboo for dry kg/acre but kudzu is being investigated.
There is in fact research into regrowth of fatty breast tissue from stem cells. There are a number of reasons for pursuing "natural" materials for reconstruction. For total reconstructions due to mastectomy, birth defect or injury the man-made implants are not cosmetically convincing. Some women are allergic or otherwise do not tolerate silcone in the implant envelope. Many women are not excited about having foreign material implanted in their bodies and especially for mastectomies would prefer to be reconstructed with their "own" tissues. It's a prosthetic versus regrowth issue... just like it is for the rest of the article.
How about an analogy: If you lost your pecker, would you like to have prosthetic replacement implanted under grafted skin or a regrown, fully functioning "member" from your own stem cells just like the original.
I was thinking the same thing. Perhaps the Dashboard software is the critical element and OpenWRT does not have a multi-node administration feature.
It sounds like the group in the article has an open source alternative already. Perhaps they just need to adapt to it the linksys hardware? I'd think having the code in hand for a project like OpenWRT would make that massively easier. All the hooks are nicely exposed in OpenWRT. It is one of the most impressive firmware replacement projects out there.
Nethack has a lot of interesting game play involving alteration/destruction of the environment. Obviously the "rendering" engine makes this much easier, but the logic has become very complex.
You can freeze lava into earth and water into ice and then dig into the same to create a hole. You can walk across a river by freezing it and melt it back to water with fire to prevent a mob from following. You can dig through walls, insert doors in open cavities, dig through the floor, and chop down trees. A common phrase among nethack players is TDTOE "The devs think of everything".
This extra detail leads to a lot of creative game play. Obviously in a realistic 3-D simulation that takes a lot more coding, but there is a pay-off, certainly in replay value as you try different ways of solving problems.
Explicitly handling dynamically changing environment requires the same functionality needed for computer generated random environments. Creative gameplay plus new random environments with each game? That's really big payoff and that's why people still play Nethack despite the absurdly primitive graphics.
There are truely automonous weapons out there already: land mines
Secondarily there are cluster munitions that do automatic target selection within the drop zone. They are perhaps part of a more broad catagory of autonomous target selecting munitions such as homing turpedos and missiles.
The point is that the phenomenon is occuring out in space on a huge scale at a huge distance. It is not something occuring on Earth or even in our solar system.
I agree that "dark matter" is not necessarily the cause. It could be a gravity wave or some other mechanism not associated with mass.
You are throwing up your hands WAY too soon and crying occam's razor.
Atmospheric distortions are not consistent over time or different locations and those distortions do not "lense" like gravity does. Also standard astronomic technique is to have someone confirm your results with a different telescope, in a different part of the world.
It may not be dark matter, but it's not a smudge on their mirror either.
Well one of the most common SATA controllers, the Silicon Graphics family, are totally borked in all flavors of BSD. Is that fixed yet?
The Cadmium is the really bad stuff. Nickel may be dirty but it doesn't cause cancer like Cd does.
One motivation is to avoid producing a lot of orbitting debris. That was the international beef with China's test of their anti-SAT weapon. Deorbiting debris also burns up, disallowing any intelligence gathering by Russia, China, etc on our spy satellites.
We already have a nanoassembler. It is called a ribosome and works with a subset of molecules called amino acids. These amino acids are quite simple individually and quite useful when combined. We have already experimented with non-biological amino acid molecules and alternative coding (codon) systems.
Synthetic biology is actually progressing quite quickly. The first "killer application", potentially a biologically derived fuel, will provide the capital needed to accelerate the pace of development.
I am not surprised at all that US forces encountered resistance in urban environments. Somalia taught all our enemies how vulnerable US soldiers can be in on the ground in mixed civilian/combatant areas.
Massed combat oustide urban centers would be necessary to drive US soldiers completely out of Iraq. The US has bases out in the desert with equipment and supplies for precisely this reason.
But the ratio uses six digits already, just to gain eight digits of pi (seven after the decimal place). I'm not that impressed.
Completely expelling US forces from Iraq would require confronting them as a massed force in non-urban terrain. That would also be sheer suicide for virtually any army on the planet, let alone irregular AQ or Sunni resistance fighters. Let's be realistic here.
Urban combat is very tough for US forces - no doubt - but saying the US was almost kicked out is a farce. So far the US is willing to accept the casualties associated with operating in urban environments. If that willingness goes away, the US may withdraw from the cities or altogether. It won't be a military decision, but a political one.
No - the ship and the gun exchange momentum, not energy. So mv is conserved, not 1/2*mv^2.
Sorry but you have this one wrong - converting mains AC to 1mhz is very easy. A common switch mode power supply chops the 50/60hz AC from the wall into a 100khz to 1Mhz waveform with a common (but fast) MOSFET. The chopped signal is then run through a stepdown transformer. The transformer and ripple filtering capacitors in the second stage can be MUCH smaller and more efficient due to the higher input frequency. In this way the high frequency generation is effectively free for a wireless power system, since most DC converter will have a high frequency first stage anyway.
The resonant coupling is the hard part. Switch mode frequency chopping is bog standard.
1 G is 9.8 M/S^2
Mach One is 340 M/S
With 1G of acceleration you can increase your mach number every 35 seconds.
Seems like it's a non-issue.