How can we delete data permanently, withoput sending to recyle bin?

I did not new about how much space they provide on free developer account, now after I have mistakenly upodated all my linkedin contact. It will not let me add any data neither delete it. Any other option. 

I did not new about how much space they provide on free developer account, now after I have mistakenly upodated all my linkedin contact. It will not let me add any data neither delete it. Any other option. 

Hi Folks, I am new to salesforce and wolud like to know, "How to calculate no of child records to a parent object without using trigger". 
Any help will be appreciated, Thank you very much beforehand.

Hello,

How is it possible to calculate distance between two points given the lattitude and longitude.
Also, are there other geolocalization apps i can have a look

Thanks