The sun would be the most obvious choice for such a reference point, though it’d be amusing to make it Greenwich and therefore make everyone deal with Earth’s rotation and orbit if they want extremely precise calculations (though I expect there wouldn’t really be a practical difference on that scale).
I do like Whirlpool, an Australian forum primarily centred on technology. It’s still active despite the general decline of forums, has a lot of useful info to turn up in searches, and I appreciate how it has remained clean and fast without the visual clutter and wasted data of modern web design.
It appears to be a 1970s bike (I would take a stab at a Yamaha LT3) and by that period shutter speeds of 1/500 or 1/1000 were readily available amongst better quality cameras. That would be plenty to get a clear shot of the spokes on what would be a relatively slow moving bike (I would assume <40km/h, likely noticeably less). I’ve got several 50s era cameras that have 1/500 top speeds, so even if the bike was new at the time of the photo it didn’t require a new camera to take the shot.
I would not say having the inside foot off the peg and held forward in this situation is an indicator of the photo being fake, seeing as it’s a common behaviour when riding dirt bikes.
A blue ringed octopus - they’re a cute looking tiny octopus but quite capable of killing a human.
What’s worst is that after getting bitten by one you will be mentally alert but completely unable to do anything as you feel your body just stop doing things that keep you alive (like breathing)…
The thinking involved in driving a manual is very minimal once you get used to it, so I reckon any safety issues caused by that would be outweighed by a reduction in the unfortunately common situation of unintended acceleration crashes. You are lot less likely to drive through the nearest wall (or kids) if your instinctual reaction to moving when you should not be is to also go for the clutch and cut power instead of just pressing harder on the wrong pedal.