Science & Technology Quiz 2: The one with the catchy title.

[Mise]

No! More clues!

 

[El_Machinae]

Well, these types of plastic are economically viable enough such that most cities will allow you to recycle them under their recycling program.

 

[Firstlady]

Before you post another, let's hear the answer to this one. xD

 

[Zebra 9]

Yes please, the rules say 72 hours, its been 77!

 

[History_Buff]

Well, these types of plastic are economically viable enough such that most cities will allow you to recycle them under their recycling program.

Then surely it must be the Polyethylene used to make pop bottles and such.


If I should prove correct, someone else post a question please.

 

[Zebra 9]

Ok we are beginning day 4 of this question so here is a new question (the poster of the last question has been on but is not posting a new question despite requests, if he wishes I will remove the below question before 1:30pm today, that is exactly 4 days after his question).

Who can tell me the fastest record manned aircraft speed? It was set by Eldon W. Joersz on July 28, 1976 near Beale Air Force Base, California. He used a Lockheed SR-71 Blackbird which was capable of unassisted take off and landing on conventional runways.

P.S. I'll give you a +/- 50 MPH ( +/- 80 KMH) margin of error since some sources may very and since you are not allowed to use resources.

 

[Firstlady]

He used a Lockheed SR-71 Blackbird

My grandfather and some of his military friends talked about this once when I was younger. All I remember is that it was over ten times faster than what the car we were driving in could go, so I'm going to guess...1,300mph.

 

[Zebra 9]

Thats a bit higher then an older record but its quite a bit lower then the current record, so close but not quite.

 

[peter grimes]

1300 mph is about Mach 2ish, and I'm pretty sure the record is somewhere north of Mach 3, so I'm going to guesssssssss

2000 mph (a nice round number, as long as you dont' convert to metric )

 

[Zebra 9]

Very close but not quite.

 

[Firstlady]

if 2,000 is very close

then 2,300mph?

 

[Perfection]

1500?
1600?
1700?
1800?
1900?
2100?
2200?
2400?
2500?
2600?
2700?
2800?

 

[Mise]

1550?
1650?
1750?
1850?
1950?
2150?
2250?
2450?
2550?
2650?
2750?
2850?

 

[Zebra 9]

2300 isn't it, and I'm not sure which number you guys want me to use?

 

[Brighteye]

2,550mph?
3,900Kph?

 

[Zebra 9]

Nope. Not quiet

 

[Firstlady]

if mise and perfection didn't get it..

*throws hands in the air*

i don't know.
it must be in the low 2,000s.

2,200.

 

[Zebra 9]

2,194 mph, so Firstlady got it. And yes the other 2 listed winning numbers but they were cheating.

So Firstlady you post the next question.

 

[Firstlady]

Someone else can take it.

Open floor

 

[El_Machinae]

Then surely it must be the Polyethylene used to make pop bottles and such.


If I should prove correct, someone else post a question please.

Yes, they're mostly downcycled though (still being economically viable when downcycling, it's just not true recycling). However, if care is taken to sort all of the bottles by colour and all the labels removed completely, PET can be recycled into its old self.

Of course, this is as an aside, since I've clearly abdicated.