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Comment Doesn't Compute (Score 3) 151

The new mine, which will cost an estimated 165 million pounds ($201 million), will see the majority of its coal exported to mainland Europe.

"This coal will be used for the production of steel and would otherwise need to be imported."

I suppose it makes about as much sense as Brexit.

Comment Re:You wish. (Score 4, Interesting) 135

It'll never be safer to put that junk in a rocket. It'll never be cheaper to put that stuff in a rocket.

I was part of a group that did extensive modeling of the waste processing processes for the Hanford cleanup. One day, a coworker and I did some rough calculations based on the then-new reusable SpaceX rockets. We assumed a 50,000 lb payload, and density of concrete (assuming we'd be able to grout our waste rather than vitrify it, which is the current plan). This kept estimates unreasonably conservative.

The target: Launching our nuclear waste into the sun.

We found that with reusable rockets (5 launches per rocket) plus what we guessed to get from LEO to the sun that would be a total loss, and using an operational budget matching the current effort, we'd be rid of all the Hanford waste in under 50 years.

In that time, we'd have further developed all rocket technology, especially reusable rockets, perhaps some space elevator technology, and presumably untold numbers of additional supporting technologies.

So cheaper? Yes.

Safer? Yes, arguably. Safer in that we're done in 50 years, rather than never with the current progress. Potentially less safe in the event of a rocket exploding mid-air.

Comment Re:Add to previous (Score 1) 98

...tetra-ethyl-lead is no longer used in gasoline as a knock suppressant.

At what cost, though? Removing the led reduced compression ratios significantly. Where it was common to see 10:1 in gas engines with lead, removing the lead dropped many to 7 or 8:1 at best. It wasn't until 30-40 years later that 10:1 gasoline engines became commonplace again. What did that 30 years of reduced fuel efficiency do? Is it more impactful than the lead would have been?

Comment Re:Why does slashdot keep posting this horseshit? (Score 1) 30

"New GriftHorse Malware Infects More Than 10 Million Android Phones"

The malware doesn't infect Android. The end user has to download and install a compromised app from an app-store.

Insightful?!? C'mon, Mods!

It infects Android phones.

Tell me how there is a difference to an Android phone User?

The same difference a person considers with biological pathogen infection paths: if they have a better understanding of what causes the infection, they can be better prepared to defend against it.

So for an Android phone user, if they know it's caused by the user downloading something themselves, they (can) know to be on the lookout for suspicious apps (which opens up a whole other can of worms). If, on the other hand, they don't know anything about it, then they have no idea what to look for.

Comment Re:Business opportunity! (Score 1) 298

Are you aware that there are more electric car charging stations in NYC than gas stations - and it has been this way for over 5 years?

Point of clarification. The article linked also isn't clear. Is this comparing individual chargers to gas stations? I've never been to NYC, so I don't know: don't gas stations there have multiple pumps? What's the comparison of individual chargers to individual pumps?

Comment What is this doing on Slashdot's front page? (Score -1, Offtopic) 103

I'm appalled! This isn't political. Has nothing to do with COVID. Doesn't talk about some LGBTQ+ issue. Has nothing to do with race.

It's like this was written for nerds. News for them or something. Like it matters.

What has Slashdot come to?

Comment Re:Science news for the innumerate? (Score 3, Funny) 62

"could increase the total power by about 10 percent, the researchers found. That's the equivalent of adding an additional turbine, on average, for every 10 in a wind farm"

Gee, I'm glad you explained what an increase of 10% is for your readership. I'm sure they were scratching their heads over that.

This was obviously for the Oregon graduates so they can understand. They don't need to math well.

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