I was thinking about how to reduce the transmission of aerosol-transmitted diseases at events. It seems the thing to do is to get contaminated air out of horizontal space that is head height. As such, vertical airflow is required. Small holes in the floor to suck air downwards, or push in clean air. And likewise in the ceiling. Perhaps the air flow direction would depend on whether the air is being heated or cooled.
Thursday 16 September 2021
Tuesday 6 July 2021
Sensing sleep and pausing content
Wearable devices such as heart rate monitors, and more advanced technologies such as electroencephalograms (EEGs), are able to pinpoint the moment that a person goes to sleep. By combining this technology with smartphones and other devices that display or emit content (e.g. audiobooks, TV shows, etc), it should be possible to pause the content at the point the viewer/listener goes to sleep.
Such a technology would have two key advantages:
- By pausing the content, it is less likely that the person's sleep will be disturbed (this is more likely to happen when there his a high dynamic range in the audio content - the person goes to sleep during a quiet period and is then woken up during a noisy period)
- The person is able to resume their viewing/listening at a future time without having to rewind
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