I make physics notes (that contains mathematical formula and other characters). I am using ms word 2010 to type. I want to publish it in my blogspot. I tried copying and pasting it directly but the mathematical formula didnt get displayed. What can be done... Thank you

Hi
Have you tried pasting a screen shot?
Tony

"A product of the W3C Math Working Group, MathML is a low-level specification for describing mathematics as a basis for machine to machine communication which provides a much needed foundation for the inclusion of mathematical expressions in Web pages." I've never used it, but am aware of it because I use other structured files with the same .mml extension.
You might be able to reverse your workflow: prepare equations and formulæ in MathML and output an .svg (or just a bitmap) for use in Word files.
HTH!