In July 1804, Biot joined Joseph Louis Gay-Lussac for the first scientific hot-air balloon ride to measure how the Earth's magnetic field varies with elevation (NNDB 2009, Reese 2004,[5] O'Connor and Robertson 1997).

[7] In addition, Biot received the Rumford Medal in 1840, awarded by the Royal Society in the field of thermal or optical properties of matter.

In 1850 Jean-Baptiste Biot published in the Journal des savants a 7-page memoir from his recollections of the period of the late 1790s and early 1800s concerning his encounters with Laplace.

To publish it in correct form, Jean-Baptiste Biot wrote, he had to consult Stanislas Julien, the famous Sinologist, but also, especially for the translation of the most difficult part, the Kaogongji, he himself visited many workshops and questioned artisans and craftsmen about their methods and vocabulary in order to verify his son's work.

In 1804, he used lines of equal magnetic field intensity in an article authored together with the Prussian naturalist Alexander von Humboldt.

[12] With his report, Biot helped support the German physicist Ernst Chladni's argument, published in 1794, that meteorites were debris from space.

[13]Prior to Biot's thorough investigation of the meteorites that fell near l'Aigle, France in 1803, very few truly believed that rocks found on Earth could have extraterrestrial origins.

In 1815 he demonstrated that "polarized light, when passing through an organic substance, could be rotated clockwise or counterclockwise, dependent upon the optical axis of the material.

The modern application of the substance began in 1768, and in 1832, Jean Baptiste Biot discovered the physical properties of cream of tartar.