Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!



Credit Card Swipe Fees Begin Sunday In USA

neurostar gas stations (732 comments)

(it seems that gasoline station owners here in Massachusetts got a different memo, though)

Despite the fact that the outcome is similar, there's a legal difference between "surcharge for credit" and "discount for cash". The former is/was illegal, the latter is legal. Presumably gas stations in MA and elsewhere are doing the latter.

about a year and a half ago

Astronomers Witness Whopper Galaxy Collision

neurostar Order of Magnitude (227 comments)

Well, in some cases, astronomy is an order of magnitude science. As this collections of objects doesn't seem to have any gravitational lensing associated with it, there is no way to independently determine the mass of the system. A rough guess at the mass can be determined by assuming a mass to light radio since we know how bright it is (and presumably how far). That would lead to the mass estimates.

more than 7 years ago


neurostar hasn't submitted any stories.


neurostar has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?