The Gradient Level Wind Analysis is a snapshot of the airflow near the surface of the earth. The arrowed lines are called streamlines and represent the direction of the wind. The dashed lines are ...

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There is a planned Crossref maintenance outage between Tuesday, 14 January 6:00 to 11:00 UTC. This impacts access to BibTeX and RIS files.

See how your money's value changes over time, and and how much it could be worth in the future. Many, or all, of the products featured on this page are from our advertising partners who compensate ...

GEEC, stands for Gal Eötvös Earth Calculator, is an open-source software dedicated to compute precisely the gravitational fields of a mass body. This software is ...

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Tax credits A benefit that lowers your taxes owed by the amount of the credit. This calculator assumes credits entered are nonrefundable. Many, or all, of the products featured on this page are ...