Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Gravitational Force as a Tool 
Name: Unknown
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1999
Question:
I am looking for a way to measure the relevant height of objects. If I am building a house I want to make sure the roof is level. I know you can use a laser level or string level but if you do not have line of sight or there are obstruction in place how do you do it and be accurate to 1 mm. I thought go may be able to measure the gravitational force at one spot and compare it to another spot and therefore work out a difference in force which means thatthe second spot is either higher or lower than the first.

Replies:
I think your best bet may be a transparent hose full of water.

Tim Mooney


Click here to return to the Physics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory