Gai Murakumo
Member
That is awesome. I love when Science create things like this.
So something that moves backwards no matter how much you try to move forward?
We've had it in the US since January.
I agree...Yup, I'm sick of these stupid editorialized headlines. In no way is "negative mass" the same thing as "effectively negative mass"
I really wish there was a fine specifically for journals/papers that sensationalize the shit out of research findings. They do a disservice to the field, as well to potential for public to actually engage with the updates.
Somehow, but assuming you can really do it that way, you get kinetic energy with a negative work. So infinite energy.So to throw it away from you... you pull it towards yourself?
So, we can have Flying Cars & Hoverboards now?
Basically, a nice, strange object... They suggest it could be useful for studying cosmological objects like black holes using analogies, sinceSo what's this for?
Among other issues, how would such a system even collapse if the effects was "going away when pulled"?Well if you have massive gravitational mass the effect is to warp Spacetime like a black hole. Not sure what happens if you had a powerful negative mass or if such a thing is possible really.
So to throw it away from you... you pull it towards yourself?
lol someone put in a cheat code
Not a chance...So is this going to eventually turn into force field tech? Pushes back bullets and shit?
Well, somehow, as long as there's energy in it, but should you scale the thing, you would probably use all the energy in what... microseconds?Also, applying force from the top pushes back equally from the bottom making things hover?
What the... is she ok..
So something that moves backwards no matter how much you try to move forward?
We've had it in the US since January.
Meryl Streep is all like, "The priest in question has your son!" and Viola Davis explodes with "LET HIM HAVE HIM, THEN!" , leading to Meryl Streep's stunned "wat".
Wait I thought Streep was a bad guy in this movie? (I'm gonna just go read the wiki now...)
I think it would be stranger...Apparent negative mass is super weird.
At first I assumed it would make the object completely impossible to push. Like, as you start pushing, you encounter resistance from the negative mass, the more force the more resistance, to infinity (until you let go). Now I'm thinking the vectors are simply oriented the other way. A negative mass object left on a single plate scale would indicate a weight of zero;
So.. it's a bit like anal sex?
Haha.
unlike every physical object in the world we know, it doesnt accelerate in the direction it was pushed. It accelerates backwards.
It's not that hard. You push Homer's brain towards Flanders, and instead it moves away from Flanders. That's negative matter!
More seriously I was kind of getting there with the Simpsons joke, I think it's like if you tried to push someone (stronger than you I'd assume) and they don't like being pushed that way so they push back AT you instead as you try harder to push them. Kind of like Homer probably would if you were trying to just shove him to Flanders.So basically this?
Oh yeah, I remember this. As other people said, this is really nothing spectacular, it is only an effective negative mass, not the actual thing.
The fluid is kept confined in a magnetic trap. When the trap is switched off, the normal behavior (positive mass) would be that the fluid's pressure makes it expand. In the region where the mass is effectively negative, it contracts instead.
You may see it in the picture they have in the article
The effective mass is just the curvature of the energy function plotted. You see that overall, it still positive, there is only a small region where it is curved downwards, there the "effective mass" is negative.
There would be no way to have the mass be negative over the whole region, it is in fact an unstable equilibrium situation, like a pencil balanced on its tip.
the article is being sensationalist (like most science articles).
Yup, I'm sick of these stupid editorialized headlines.
Not if both gravitic and inertial mass are negative...It only exists in the lab (and probably only for microseconds) but this stuff would also be repelled by the earth's gravity.