How did people measure time before mechanical clocks were created? For example, how did time get measured in Ancient Rome? Did mechanical devices exist then to know the hour? - Quora
![Hourglass isolated on white background, vector illustration. The symbol of the passing time. Vintage classic clock with sand inside to measure time. C Stock Vector Image & Art - Alamy Hourglass isolated on white background, vector illustration. The symbol of the passing time. Vintage classic clock with sand inside to measure time. C Stock Vector Image & Art - Alamy](https://c8.alamy.com/comp/2G7N0CK/hourglass-isolated-on-white-background-vector-illustration-the-symbol-of-the-passing-time-vintage-classic-clock-with-sand-inside-to-measure-time-c-2G7N0CK.jpg)
Hourglass isolated on white background, vector illustration. The symbol of the passing time. Vintage classic clock with sand inside to measure time. C Stock Vector Image & Art - Alamy
![Performance analysis for measure the time to category of A, B, and C... | Download Scientific Diagram Performance analysis for measure the time to category of A, B, and C... | Download Scientific Diagram](https://www.researchgate.net/publication/359510479/figure/fig4/AS:1138604399165474@1648475851568/Performance-analysis-for-measure-the-time-to-category-of-A-B-and-C-with-average.jpg)
Performance analysis for measure the time to category of A, B, and C... | Download Scientific Diagram
![transistors - Measuring capacitance by measuring rising time - Electrical Engineering Stack Exchange transistors - Measuring capacitance by measuring rising time - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/EnGcw.png)
transistors - Measuring capacitance by measuring rising time - Electrical Engineering Stack Exchange
![Optical Imaging to Measure Cell Growth over Time. (a,c) Representative... | Download Scientific Diagram Optical Imaging to Measure Cell Growth over Time. (a,c) Representative... | Download Scientific Diagram](https://www.researchgate.net/publication/320630447/figure/fig3/AS:554146698469380@1509130276544/Optical-Imaging-to-Measure-Cell-Growth-over-Time-a-c-Representative-images-of.png)
Optical Imaging to Measure Cell Growth over Time. (a,c) Representative... | Download Scientific Diagram
![A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator (temperature $ 0^\\circ C$ ). If you could measure the temperature of the content of the tumbler, A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator (temperature $ 0^\\circ C$ ). If you could measure the temperature of the content of the tumbler,](https://www.vedantu.com/question-sets/93ffe7d5-cac8-4ecd-a1fa-66c8c9b2d3195564661874322596017.png)