Newer and better methods of measuring the height are invented.
Erosion can cause the height of mountains to decrease.
Changes within the Earth can cause mountains to grow.
All of these
Trigonometric ratios.
Today they use satalites to measure the height of Mount Everest. When the mountain was first measured by Andrew Waugh, the British Surveyor General of India in 1847 they used a very large Theodolites weighing up tp 1100lbs and needing 12 men to carry them.
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Temperature & Height
The first recorded height for Mount Everest was 29.002ft 8.839m in 1852.
There is no monument that is higher than Mount Everest. Mount Everest stands at a height of 29,028feet or 8,848metres.
Length of my room Width of my road Length of a swimming pool Height of Mt Everest (not that I would measure it!) Depth of the local lake.
The first recorded height for Mount Everest was 29.002ft 8.839m in 1852.
Today the height of Mount Everest is calculated using GPS and Satellite.
The official height of Mount Everest is 29,028 ft or 8,848 m
Mount Everest is 8,848m high
It would no longer be possible to understand or compare results obtained by different scientists.