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Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

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joecct said:
FreshFish-I asked a solar guy.

First, if the shingles are close to replacement, replace them. Second, it costs $500 to take the solar down and reinstall when you get a new roof.
Click to expand...

Bull **** on the 500 bucks
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

FreshFish said:
If I were an inventor, I'd find a way to embed solar fibers into roofing shingles (sort of like how one can now put an electric heating grid under a tile floor before they lay down the tile above it, but flip-flopped). Then, every time a person needs a new roof, they can get a two-fer quite easily; you only have to hire one crew once instead of two[SUP]1[/SUP].

It seems to me a mis-use of solar to link it to a national grid at all. I'd think a localized mix of whatever works best in a certain area would make more sense. Every building have its own solar for its own use, with the excess shared / stored locally. Having too widespread a grid tied into all sorts of different generating technologies risks kluge effects that we might never unwind, and it also is a serious threat to national security.




[SUP]1[/SUP] When people have solar panels on top of their roofing shingles, what do they do when it comes time to replace the shingles? Do they have to disconnect the panels and remove them, replace the roof, and then put them back up? Somehow that detail never makes it into the sales literature....
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You need to do the math if you think solar can be everything to everyone. If Musk can come up with the battery pack he has talked about at the price point he talked about then maybe you can do your own thing off grid. Doing grid tied means your neighbor is paying for the lines coming down the street but you don't as your usage off the grid is minimal. Having tons of people with grid tied systems makes it hard to balance what generating plants need to be online and when they need to be online. On the other hand have grid tied panels when there is a heat wave puts valuable juice into the grid when it really needs it.

there are already roofing systems with solar built in. Not sure how they work. I believe they are less efficient than good panels
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

question for science peeps

at the end of independence day 1, will sets off that nuke in the mother ship and escapes, only to have to fly out of the explosive cloud.
so....
how does that cloud exist?

doesn't fire need oxygen?
isn't there NO oxygen IN space?

does a nuke create oxygen? through atom deconstruction?

always confused mookie.

thanks for your expert replies :)
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

mookie1995 said:
question for science peeps

at the end of independence day 1, will sets off that nuke in the mother ship and escapes, only to have to fly out of the explosive cloud.
so....
how does that cloud exist?

doesn't fire need oxygen?
isn't there NO oxygen IN space?

does a nuke create oxygen? through atom deconstruction?

always confused mookie.

thanks for your expert replies :)
Click to expand...

There was a debris field - that was a pretty big ship. But how do you show a debris field in space? So they did, IMO, stretch the science.
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

joecct said:
There was a debris field - that was a pretty big ship. But how do you show a debris field in space? So they did, IMO, stretch the science.
Click to expand...

so is it on fire? burning out of control?
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

mookie1995 said:
so is it on fire? burning out of control?
Click to expand...

The blast would generate heat. Something will glow with the heat, but did the atmosphere on the mother ship (if there was one) support combustion? And will the atmosphere expand to support any combustion? Got me.

In SciFi, the standard way to end a fire on a spaceship is to dump the air in the compartment(s) to space. That will put out the fire (unless it is electrical).
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

joecct said:
The blast would generate heat. Something will glow with the heat, but did the atmosphere on the mother ship (if there was one) support combustion? And will the atmosphere expand to support any combustion? Got me.

In SciFi, the standard way to end a fire on a spaceship is to dump the air in the compartment(s) to space. That will put out the fire (unless it is electrical).
Click to expand...

well they did use air as we know it, so a healthy majority mix of oxygen and nitrogen i recall.

the exploded field, that wouldn't have any acceleration (or increase in velocity)? would it?
the explosion would set it on a course and with no gravity or friction it would continue at the original speed until it reached earth's (or another planets) atmosphere.

so in theory with the spacecraft at max speed (couple times speed of light?). how fast would an atomic explosion initially propel shrapnel?
 
mookie1995 said:
well they did use air as we know it, so a healthy majority mix of oxygen and nitrogen i recall.

the exploded field, that wouldn't have any acceleration (or increase in velocity)? would it?
the explosion would set it on a course and with no gravity or friction it would continue at the original speed until it reached earth's (or another planets) atmosphere.

so in theory with the spacecraft at max speed (couple times speed of light?). how fast would an atomic explosion initially propel shrapnel?
Click to expand...

At 2c you'd be past the moon in 1 second. And movies forget that in order to slow down your have to decelerate in order to stop. That takes time, too. There are no disk brakes according to Newton.
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

joecct said:
At 2c you'd be past the moon in 1 second. And movies forget that in order to slow down your have to deaccellerate at the in order to stop. That takes time, too. There are no disk brakes according to Newton.
Click to expand...

Are we talking about the aliens? Because if they got here they have FTL, and that opens the door to any pretend nonsense they want. :)
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

Kepler said:
Are we talking about the aliens? Because if they got here they have FTL, and that opens the door to any pretend nonsense they want. :)
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will smith was flying their spacecraft, so yah mookie guesses he is talking that.
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

LynahFan said:
Amen. You can't get a contractor to step foot on your property for $500.
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I'll step on it for 500 but I aint taking 20 panels off it, all the wiring, the racking system which are lag bolted to rafters, getting off and then put it all back up. Especially on a new roof where every step is going to leave a mark for some homeowner to whine about( which is why I don't work for residential customers). Its worse than a new install as you had to take it off also.
 
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Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

Kepler said:
Fascinating piece on decoherence and the arrow of time.
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Wow! Great article. If you didn't read this, you should. If you want the Cliff Notes version: Entropy Rules

It's been 30+ years since I've read more than a blurb about quantum mechanics but the author made most if not all of it fathomable. I'm always in awe of people who can take a complex idea and make it understandable by those who aren't well versed in the principles involved. I strive to do that daily in my job.
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

Video of SpaceX performing a full length test firing of one of their returned first stages.

I wonder, do the engineers and technicians on the ground ever get past the "I can't believe they pay us for this" stage of their employment?
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

GrinCDXX said:
Video of SpaceX performing a full length test firing of one of their returned first stages.

I wonder, do the engineers and technicians on the ground ever get past the "I can't believe they pay us for this" stage of their employment?
Click to expand...

My god, I wouldn't. Is it too late to start over?
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

Kepler said:
My god, I wouldn't. Is it too late to start over?
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I wouldn't think so. How much more schooling would you need to be hired on as the guy who stands off to the side giggling uncontrollably?
 
Re: Science: Vaccines Work, GMOs Are Safe, Everything is a Chemical

Kepler said:
My god, I wouldn't. Is it too late to start over?
Click to expand...

Embry Riddle has lots of Students at Space X, nice campus in Daytona beach, aint too shabby
 
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