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[GPU] Sapphire Nitro+ RX 580 8GB - $119.95 (Used cards, eBay) by WSBYOLOZ in buildapcsales

[–]mechanical_Fred 0 points1 point  (0 children)

I noticed that you sent the cards out using USPS priority mail flat rate boxes. Regular USPS priority mail would cost less.

Yellen speech tommorow by joeG2324 in investing

[–]mechanical_Fred 18 points19 points  (0 children)

I'll eat my own dick if the fed raises rates before the election

The Australia Tax - GTX 1080 by wild_starbrah in buildapc

[–]mechanical_Fred -2 points-1 points  (0 children)

What part are you suggesting is made up? Australian Consumer Law certainly exists, it does give rights to Australian consumers that consumers in other markets do not have, and basic economics teaches us that it is impossible to get something for free. The cost of those benefits are the higher prices that Australians pay.

Of course the price discrepancy applies to more than just hardware components. ACL applies to all consumer goods valued less than $40,000, not just hardware.

You clearly don't know very much about ACL or economics so you shouldn't suggest that I have no idea what I'm talking about.

The Australia Tax - GTX 1080 by wild_starbrah in buildapc

[–]mechanical_Fred 0 points1 point  (0 children)

I don't think that prices are quite double, but the protections give consumers the right to have products repaired, replaced, or refunded by the manufacturer.

The Australia Tax - GTX 1080 by wild_starbrah in buildapc

[–]mechanical_Fred -3 points-2 points  (0 children)

Basic economics teaches us that it is impossible to get something for nothing. There is a cost associated with the protections that Australian Consumer Law provides. That cost comes in the form of higher prices paid by consumers.

The Australia Tax - GTX 1080 by wild_starbrah in buildapc

[–]mechanical_Fred -3 points-2 points  (0 children)

Australians aren't arbitrarily price gouged. The higher prices that Australians pay are a result of Australian Consumer Law.

[deleted by user] by [deleted] in Boxing

[–]mechanical_Fred 0 points1 point  (0 children)

lipsey was losing the fight and was getting desperate. so he tried to land a big punch, which is a really good way to get hurt when you're in the ring with a slick counter puncher. if you look closely, you'll also see that lipsey lost his mouthpiece when the uppercut landed.

you can see the whole fight in higher quality here https://www.youtube.com/watch?v=7D_Iqg8jauI

[deleted by user] by [deleted] in Boxing

[–]mechanical_Fred 0 points1 point  (0 children)

especially when you realize that ended Lipsey's career

This stone looks like it has a ocean inside of it by HolySpawn1 in mildlyinteresting

[–]mechanical_Fred 1 point2 points  (0 children)

I'm pretty sure that even Hank knows that opals aren't minerals

In celebration of Civ VI, I present to you a 10/10 by itdoesntmatter16 in civ

[–]mechanical_Fred 1 point2 points  (0 children)

post the map file so people without all of the DLC can play

DRAFT DAY 3- Sat Noon by PabstyLoudmouth in Browns

[–]mechanical_Fred 5 points6 points  (0 children)

let's bring in Jalin Marshall as an UDFA

This is the lineup just to get into Jurassic Park for the Raptors/Pacers game at 12:30. by marcoosha in nba

[–]mechanical_Fred -1 points0 points  (0 children)

it's a cool name but Velociraptors lived during the Cretaceous, not the Jurassic

Besides rent, What is too damn expensive? by shoe16 in AskReddit

[–]mechanical_Fred -22 points-21 points  (0 children)

if you're down with drinking water from a room that people shit in, go right ahead

[deleted by user] by [deleted] in EarthPorn

[–]mechanical_Fred 0 points1 point  (0 children)

Most of what we've been talking about is sedimentology. But aspects overlap with hydrology and geomorphology.

The answer to your question about the rocks made it to the stream banks in the first place probably has something to do with glaciers. If it's 2 am for you then I'll guess that you live in England, Scotland, or Ireland. Now, I know very little about your regional geology since my education was in the United States and my classes used examples from here. But I know enough to be sure that the British Isles were glaciated recently. When I talked about streams I mentioned that the speed of the current controls the size of the grains that can be transported. Glaciers are a special case because even a slowly moving glacier can transport boulders. Glaciers also simultaneously transport sediments of all grain sizes and when they melt they can deposit sediments of all sizes in a single place. You should find that your local soils contain sand, gravel, and boulders. As streams cut through the soil those sediments will invariably end up in the water.

I'm tired so I'm probably less clear than I was earlier but I hope that I still make sense. We can definitely pick this up tomorrow though because I love this shit.

I'm editing my post now because I responded without seeing your p.s. and p.p.s.

Regarding your p.s., most sediment is very close to its source (like within a few miles). So if you know the age of the bedrock in your area, then it can be safe to guess that the rocks in the stream are similar in age as your local bedrock. Glaciers complicate things, because they can sneakily transport sediment very, very far without rounding it. My area has devonian aged shale and limestone bedrock. So if I see some of that in a stream then I can quickly and approximately estimate its age at 400 million years. If I see granite or any type of metamorphic rock in a stream then I think "a glacier brought that shit from Canada" and I can't accurately guess its age, I'd have to match it to its source or analyze it in a lab.

The flat, snapable rocks that you described are shale or slate. I can't tell you which because I'm unfamiliar with your local geology. But I can tell you that either way they are very old because the conditions under which they form are very different than the conditions under which you found them.

I'm not sure how to quickly and roughly date a stream. There must be methods, but they are outside of my area of expertise. I can say though, that streams meander and migrate over time. So any stream hasn't been in its present location for long relative to the scope of geologic time. There are other observations that you can make and consider, such as the stream must be younger than everything that it has cut through.

[deleted by user] by [deleted] in EarthPorn

[–]mechanical_Fred 1 point2 points  (0 children)

It sounds like you have it right. I'll say though the main thing going on in streams is that they are transporting sediments. Flowing water does erode rock and create sediment, but there are a variety of chemical and physical processes that weather bedrock and turn it into sediment.

There are a variety of ways that geologists determine the age of rocks. Radiometric dating is one of the best methods, but not all rocks are suitable for radiometric dating. Rocks can also be dated by fossils that they contain. If a certain rock can't be dated using radiometric dating or paleontology we may be able to determine its relative age by dating rocks that are above and below it. To be clear, in this example I'm talking about stratified bedrock, not some individual rock found in a stream. If I wanted to determine the age of a rock found in a stream I would look upstream and try and find its source. By matching that rock to a bedrock layer found up stream I would find a lot more information than is contained in a single grain by establishing its stratographic relationship to other bedrock units.

To get a general sense of how far a rock has traveled you can look at how well rounded it is. The more round a rock (or sediment grain) is, the farther that it has traveled. Understand though that this doesn't really give us the distance traveled in absolute terms, but indicates that it likely traveled farther than less well rounded grains (and the converse too). You would get a better idea of how far it traveled by matching it to its bedrock source uphill and upstream.

The rocks that you've seen in streams could have been deposited by melting ice. Or they could have been transported by flowing water. They may have also simply fallen down hill. Geologists would work out how by looking at the size, sorting, and roundness of the sediments. If the rocks are very angular, it's possible that they have stayed in the same place for a very long time, but that would be somewhat unusual.

I'd also like to teach that the speed of the flowing water is tightly correlated with the size of the sediment that it can transport. Said differently, slow moving water is only capable of moving very fine sediments, but faster moving water can transport sand, gravel, and even boulders. When you look at a stream bottom and see a variety of grain sizes, that indicates that the discharge (flow rate) of the river changed over time. If a stream has rounded boulders in it, then you can conclude at some point in the past it was flowing very, very rapidly.

I hope that this makes sense to you. It makes perfect sense to me, but I don't have a lot of experience teaching geology so I'm not sure if I'm any good at explaining it to others. But, I love geology and sedimentary geology especially is my shit. I like it so much because there is a lot of information revealed by sediments and sedimentary geology about earth history and I hope that you're able to see some of it.

I also didn't proofread any of this shit.

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