diff --git a/content/physics/thermodynamics.md b/content/physics/thermodynamics.md
index ca5e295..6cf628b 100644
--- a/content/physics/thermodynamics.md
+++ b/content/physics/thermodynamics.md
@@ -52,9 +52,9 @@ $$
 Where $I$ is the *power* intensity that is radiated per unit of wavelength $\lambda$, per unit area of the black body. By multiplying the differential of $\lambda$:
 
 $$
-I(\lambda, T)\mathrm{d}\lamdba
+I(\lambda, T)\mathrm{d}\lambda
 $$
 
-Provides the power per unit area of the black body, from the interval $\[\lambda, \lambda + \mathrm{d}\lambda\]$, given that $\mathrm{d}\lambda$ is an infinitesimally small quantity. 
+Provides the power per unit area of the black body, from the interval $\left[\lambda, \lambda + \mathrm{d}\lambda\right]$, given that $\mathrm{d}\lambda$ is an infinitesimally small quantity.