Overclock.net › Forums › Industry News › Technology and Science News › [BBC] Physicists observe 'negative mass'
New Posts  All Forums:Forum Nav:

[BBC] Physicists observe 'negative mass' - Page 2

post #11 of 47
Quote:
Originally Posted by GingerJohn View Post

Source


I'm trying to wrap my head around the concept of negative mass, and failing miserably. Also the concept of pushing on something and having it react by accelerating towards you is just weird.

For those that have a subscription, here is the journal

Just the other day I was reading an old article about pilot wave theory https://www.wired.com/2014/06/the-new-quantum-reality/ and am wondering if this relates to this where instead of the drop of oil being pushed by the wave it would instead be pulled by the wave. https://m.youtube.com/watch?v=1-_IRbu1gAo&ebc=ANyPxKpQMld0utUrQko13HlcP2LfRquNmgPOsj6LWMbf62QccYqvTFuK27DW07Dovxjz3lJGQ92A
post #12 of 47
Quote:
Originally Posted by Mand12 View Post

This is done in a Bose-Einstein condensate, which is a state of matter where quantum mechanical effects end up doing some truly bizarre things to what we think of as the normal laws of physics.

The details in this paper are examining the "trapped" states of the condensate, spatially, where they end up sticking in a specific location. Previously, this has been achieved through optical lattices, where interference between two laser beams results in low-potential spots where the atoms then stay. These are the systems that have been used for the extremely close to absolute zero experiments, as an example.

The authors have found another way of implementing this self-trapping, and the mathematics of how that is achieved results in something that can be expressed as negative mass. But under no circumstances is it worth thinking about in terms of anything else you could possibly think it would be related to. This can't happen outside of very specific quantum mechanical constructs, where you're playing with momentum in ways that are completely impossible to do otherwise.


So what you're saying is we're not any closer to an element zero FTL drive. frown.gif
Dynamix
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-860 Gigabyte GA-P55A-UD4P Radeon 7970 Corsair Domintor Twins + Other = 16 Gb 
Hard DriveHard DriveOptical DriveCooling
WD Caviar Black, 500gb OCZ Solid 3 Sony Optiarc Corsair H50 
OSMonitorKeyboardPower
Windows 7 Ultimate Samsung P2570HD + Other Logitech G110 Corsair 750W HX 
CaseMouse
Antec p183 Logitech MX Revolution 
  hide details  
Reply
Dynamix
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7-860 Gigabyte GA-P55A-UD4P Radeon 7970 Corsair Domintor Twins + Other = 16 Gb 
Hard DriveHard DriveOptical DriveCooling
WD Caviar Black, 500gb OCZ Solid 3 Sony Optiarc Corsair H50 
OSMonitorKeyboardPower
Windows 7 Ultimate Samsung P2570HD + Other Logitech G110 Corsair 750W HX 
CaseMouse
Antec p183 Logitech MX Revolution 
  hide details  
Reply
post #13 of 47
Quote:
Originally Posted by Mand12 View Post

This is done in a Bose-Einstein condensate, which is a state of matter where quantum mechanical effects end up doing some truly bizarre things to what we think of as the normal laws of physics.

The details in this paper are examining the "trapped" states of the condensate, spatially, where they end up sticking in a specific location. Previously, this has been achieved through optical lattices, where interference between two laser beams results in low-potential spots where the atoms then stay. These are the systems that have been used for the extremely close to absolute zero experiments, as an example.

The authors have found another way of implementing this self-trapping, and the mathematics of how that is achieved results in something that can be expressed as negative mass. But under no circumstances is it worth thinking about in terms of anything else you could possibly think it would be related to. This can't happen outside of very specific quantum mechanical constructs, where you're playing with momentum in ways that are completely impossible to do otherwise.

For the less than science literate replace the start of the above quote with the following: "This was done in an imaginary-material-that-doesn't-exist that is created within a fake computer model,"


Should have been posted under rumors and unconfirmed... it is NOT science.
post #14 of 47
Thread Starter 
Quote:
Originally Posted by prjindigo View Post

For the less than science literate replace the start of the above quote with the following: "This was done in an imaginary-material-that-doesn't-exist that is created within a fake computer model,"
Should have been posted under rumors and unconfirmed... it is NOT science.

Sorry, did you read the article before pronouncing this not science?

Two things:

1. Yes, they did this in a lab with actual apparatus, not on a computer.
2. Even if this was a computer simulation, it is still science.

Also, Bose-Einstein Condensate (BEC) is not at all imaginary - it was theorised in 1924-5 and first produced in a lab in 1995.

https://en.wikipedia.org/wiki/Bose%E2%80%93Einstein_condensate
Main
(21 items)
 
HTPC
(10 items)
 
 
CPUMotherboardGraphicsRAM
i5 2550k P8P67 Pro Sapphire HD 7950 G.Skill RipJaws X 1600 Cas 9 
Hard DriveHard DriveHard DriveCooling
Corsair Force 120 WD Blue 500GB WD Caviar Green 1TB XSPC RayStorm 
CoolingCoolingCoolingCooling
RX240 MCR 220 EK 7950 Copper Acetal  DDC-1T 
OSMonitorMonitorKeyboard
Windows 7 64-bit Dell U2311H Oculus Rift DK2 Ducky Shine 3 MX Brown 
PowerCaseMouseAudio
Corsair TX 750W CoolerMaster CM690 II G500 Klipsch ProMedia 2.1 
Audio
Asus Xonar DX 
CPUMotherboardRAMHard Drive
A10-6800K Gigabyte GA-F2A85XN-WIFI G Skill 1600 CAS9 Kingston SSD Now 60GB 
Hard DriveOptical DriveCoolingOS
WD Caviar Blue 1TB LG Slim Blu-Ray player Silverstone NT06-PRO  Widows 7 Home Premium 
PowerCase
Silverstone Sfx Series ST45SF 450W Silverstone SG05 
  hide details  
Reply
Main
(21 items)
 
HTPC
(10 items)
 
 
CPUMotherboardGraphicsRAM
i5 2550k P8P67 Pro Sapphire HD 7950 G.Skill RipJaws X 1600 Cas 9 
Hard DriveHard DriveHard DriveCooling
Corsair Force 120 WD Blue 500GB WD Caviar Green 1TB XSPC RayStorm 
CoolingCoolingCoolingCooling
RX240 MCR 220 EK 7950 Copper Acetal  DDC-1T 
OSMonitorMonitorKeyboard
Windows 7 64-bit Dell U2311H Oculus Rift DK2 Ducky Shine 3 MX Brown 
PowerCaseMouseAudio
Corsair TX 750W CoolerMaster CM690 II G500 Klipsch ProMedia 2.1 
Audio
Asus Xonar DX 
CPUMotherboardRAMHard Drive
A10-6800K Gigabyte GA-F2A85XN-WIFI G Skill 1600 CAS9 Kingston SSD Now 60GB 
Hard DriveOptical DriveCoolingOS
WD Caviar Blue 1TB LG Slim Blu-Ray player Silverstone NT06-PRO  Widows 7 Home Premium 
PowerCase
Silverstone Sfx Series ST45SF 450W Silverstone SG05 
  hide details  
Reply
post #15 of 47
Quote:
Originally Posted by prjindigo View Post

For the less than science literate replace the start of the above quote with the following: "This was done in an imaginary-material-that-doesn't-exist that is created within a fake computer model,"


Should have been posted under rumors and unconfirmed... it is NOT science.

Demonstrable and repeatable...that's science, buddy.
post #16 of 47
Quote:
Originally Posted by Zen00 View Post

So what you're saying is we're not any closer to an element zero FTL drive. frown.gif

Sadly not frown.gif

But, I did assist in helping my roommate during grad school determine that the high-energy electromagnetic theory that he was working with would not, in fact, prohibit the creation of a Death Star superlaser capable of destroying a planet.
post #17 of 47
Quote:
Originally Posted by prjindigo View Post

For the less than science literate replace the start of the above quote with the following: "This was done in an imaginary-material-that-doesn't-exist that is created within a fake computer model,"


Should have been posted under rumors and unconfirmed... it is NOT science.

...No, it's not imaginary, and it really physically exists. I don't understand where you got that from. BECs are physical objects, and I've been to labs where they create them. The apparatus takes up most of the volume of an 8 foot by 16 foot optical table, with components stacked four or five feet high. All to control a mere handful of atoms, very precisely.

It most certainly is physical, repeatable, and a very real thing. The point I was making is that these materials are not in any way even remotely comparable to everyday objects.

Edit: Oh, right. You. I remember you from the last thread. Please take your conspiracy theories elsewhere.
post #18 of 47
Quote:
Originally Posted by lombardsoup View Post

Demonstrable and repeatable...that's science, buddy.

Science is all about logic. If the math works and the logic is sound why shouldn't anything that takes those properties be sound as well?

You cant see gravity but you know it has an effect. Just like how we can define gravity we can also define anything else that has a repeatable pattern. Especially theoretical science in unnatural settings like absolute zero, you can only use models and logic to define the outputs.
post #19 of 47
PBS nova did a great documentary on this effect called Absolute Zero: The race for absolute zero. It was absolutely mind blowing what happened. thumb.gif
Ryzen
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD RYZEN 1800x CROSSHAIR VI HERO AMD Radeon R9 200 Series Gskill TridentZ RGB 
Hard DriveCoolingCoolingOS
Crucial M100  Cooling by Noctua corsair h115i Windows 10 
MonitorKeyboardPowerCase
LG OLED65C6P Varmilo 87 Bluetooth XFX P1-650X-CAH9 650W MODULAR Corsair Carbide 540 
MouseMouse PadAudio
logitech g900 logitech G440 Marantz sr7010 and Elemental Designs home theater 
  hide details  
Reply
Ryzen
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD RYZEN 1800x CROSSHAIR VI HERO AMD Radeon R9 200 Series Gskill TridentZ RGB 
Hard DriveCoolingCoolingOS
Crucial M100  Cooling by Noctua corsair h115i Windows 10 
MonitorKeyboardPowerCase
LG OLED65C6P Varmilo 87 Bluetooth XFX P1-650X-CAH9 650W MODULAR Corsair Carbide 540 
MouseMouse PadAudio
logitech g900 logitech G440 Marantz sr7010 and Elemental Designs home theater 
  hide details  
Reply
post #20 of 47
Quote:
Originally Posted by b0oMeR View Post

Science is all about logic. If the math works and the logic is sound why shouldn't anything that takes those properties be sound as well?

You cant see gravity but you know it has an effect. Just like how we can define gravity we can also define anything else that has a repeatable pattern. Especially theoretical science in unnatural settings like absolute zero, you can only use models and logic to define the outputs.

And in this case, we have an actual procedure.

Can't believe we have people here calling this 'fake'. Even in jest, that's irritating.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Technology and Science News
Overclock.net › Forums › Industry News › Technology and Science News › [BBC] Physicists observe 'negative mass'