Q: [...]and how much of each ingredient he is putting in is not clear. {...] the data he had to use are simply not good enough to convince everyone that he has simulated past temperatures.

A: [...]and how much of each ingredient he is putting in is not clear. {...] The data he had to use are simply not good enough to convince everyone that he has simulated past temperatures.
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Q: this means that the eyes are only exposed when the customer accidentally blinks.

A: This means that the eyes are only exposed when the customer accidentally blinks.
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Q: transfer from folkestone to london luton (ltn) airport

A:
Transfer from Folkestone to London Luton (LTN) airport
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