Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Obtenir le Premium

Create a timeline

Public timelines

About & Feedback Un accord Confidentialité FAQ

Cabinet Get premium

Donate

5 h 42 min, 1 janv. 1932 ans - The phase contrast microscope was invented.

Ajouté au bande de temps:

microscope through the years

ByKaitlyn Hornung

28 sept. 2017

0

0

459

Date:

5 h 42 min, 1 janv. 1932 ans

Maintenaint

~ Il y a 93 ans

About & Feedback Un accord Confidentialité FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL