History & The Arts
Humphry Davy, laughing gas and the era of self-experimentation
...world around him. Objects became brighter and clearer, and the space in the cramped box seemed to expand and take on unfamiliar dimensions. Now, under the influence of the largest dose of nitrous oxide anyone had ever taken, these effects were intensified to levels he could not have imagined. His hearing became fantastically acute, allowing him to distinguish every sound...