You'd think the flat-earth movement could crowdfund the thousand dollars or so needed to send a flat-earther from Sydney to Santiago and back. I can only guess they're chronically tightfisted.
I guess they could sneakily fit faster engines to the plane, but that would also mean sonic booms are also a myth.
I read a great hypothesis the other day. The 'magnetic mountain' at the north pole slows down flights in the northern hemisphere. I didn't realise aluminium and titanium were very magnetic, but it just shows how deep this conspiracy goes.
Aluminum and titanium are made into electromagnets every day. Especially copper is used for electromagnets. Did you not attend you high school physics class?
Aluminium and titanium are NOT very magnetic, so the statement is 100% correct! So stop being ridiculously "pedantic" and making yourself look a fool.
A good measure of how magnetic a material is would be the relative permeability (μ/μ
0) - you did remember that bit?
For a very magnetic material we would expect μ/μ0 | > 1,000 and even up to 1,000,000 |
For titanium μ/μ0 | = 1.00005 |
For aluminium μ/μ0 | = 1.000022 |
For air μ/μ0 | = 1.0000004 |
For a vacuum μ/μ0 | = 1.000000 |
So, both Titanium and Aluminium are so close to non-magnetic that only someone trying to mislead would try to deny it.
Now, of course any electrical conductor could by used to make an electromagnet. The best materials though would have a very low electrical resistivity and a low density (light weight).
Titanium has a relatively high electrical resistivity (420 nΩ·m), though fairly low density (4.506 g/cm
3),
Aluminum has a relatively low electrical resistivity (28.2 nΩ nΩ·m), and a low density (2.70 g/cm
3) and
Copper has low electrical resistivity (16.78 nΩ·m), but has a high density (8.96 g/cm
3).
So of these three, aluminium or copper would be good metals for the windings of an electromagnet, but I can see nowhere that titanium might be used. Of course jroa in his wisdom might suggest a use.
So, expert jroa is absolutely wrong
implying that titanium and aluminium might be very magnetic - yes I know he did not explicitly say that, just tried his supposed superior knowledge to demean Mister B.
Right down to your usual tactics of dragging down and adding as little information as possible.