Purchase Solution

Four Layers in Distance-Measurement Ladder

Not what you're looking for?

Ask Custom Question

Can I get help with describing the four layers in the distance-measurement ladder involved in determining the distance to a galaxy lying 5 Mpc away?

Purchase this Solution
Solution Summary

This solution discusses the first 4 rungs of the cosmic distance ladder, and how they build upon each other.

Solution Preview

http://physics.ucr.edu/~wudka/Physics7/Notes_www/node112.html

http://terrytao.wordpress.com/2010/10/10/the-cosmic-distance-ladder-ver-4-1/

The 4 rungs we're dealing with are:
Direct Measurement (Up to 1 Astronomical Unit or the distance from Earth to Sun)
Stellar Parallax (Up to 100pc)
Spectroscopic Parallax (Up to 10,000pc)
Variable Stars (Up to 15 Mpc)

1st Rung: The first rung has become very simple due to hundreds of years of advancements using radar, lasers and knowing the speed of sound and light. By ...

Purchase this Solution
Free BrainMass Quizzes
Basic Physics

This quiz will test your knowledge about basic Physics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

View More Free Quizzes
Related BrainMass Solutions

  • examples of distance and measurement

    so 5 batches will need to be made This job reiterates examples of distance and measurement.

  • The Bird and Train Problem, The Folded paper problem

    In your imagination, fold it once (now having two layers), fold it once more (now having four layers), and continue folding it over on itself 50 times.

  • Differential Equations, Chain Rule, and Rate of Change

    This solution provides a detailed, step by step response which is presented in an attached Word file.

  • Radical expressions

    Please explain your answers in detail. 2. Solve for p. 4. The base of a ladder is 10 feet away from the wall. The top of the ladder is 11 feet from the floor. Find the length of the ladder to the nearest thousandth. 5. Simplify. 7.

  • Trigonometry: Distance from ladder

    The solution provides step-by-step method for the calculation of distance between ladder and building and angle between ladder and ground.

  • Levels of measurement

    406798 An Example of Four Levels of Measurement Provide an example of each of the four levels of measurement. There are four types of measurements 1. Nominal 2. Ordinal 3. Interval 4.

  • Equilibrium with torques on a ladder

    In this case, an axis at the floor/ladder contact expressing 'total cl torque = total ccl torque' would be written, with moment arms in parentheses, as: (4) Mg(.5Lcos c)+W(dcos c)=H(Lsin c) Using (3) to eliminate H, then solving for d, in terms of

  • Determining distance to objects

    142786 Determining Distance to Objects Determine the distance d to which the painter of weight, 80Kg, can climb without causing the 4 m ladder to slip at its lower end A.

  • Pythagoras Theorem- Billboard and Ladder Problem

    This solution is comprised of a detailed explanation of Pythagoras Theorem and its application in solving Billboard and Ladder Problems in Trigonometry.

View More Related Solutions