ΔT

The symbols Δt and ΔT (spoken as "delta T") are commonly used in a variety of contexts.

Time[edit]

ΔT (timekeeping) the difference between two time scales, Universal Time and Terrestrial Time, which results from a drift in the length of a day
The interval of time used in determining velocity
The increment between successive nerve impulses

Temperature[edit]

To mean a difference in temperature including thermodynamic temperature, may occur in
- Discussions of climate change
- Discussions of heat transfer
- Discussions of the effects of thermal gradients

See also[edit]

Delta time (disambiguation)
Finite difference for the mathematics of the Δ operator
Delta (letter) for the Greek letter Δ
∂ for the mathematical symbol used in the notation "∂T"

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