// Apply a force to a rigidbody in the scene at the point
    // where it is clicked.
    
    // The force with which the target is "poked" when hit.
    var pokeForce: float;
    
    function Update () {
        if (Input.GetMouseButtonDown(0)) {
            var hit: RaycastHit;
            var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            
            if (Physics.Raycast(ray, hit)) {
                if (hit.rigidbody != null)
                    hit.rigidbody.AddForceAtPosition(ray.direction * pokeForce, hit.point);
            }
        }
    }

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public float pokeForce;
    void Update() {
        if (Input.GetMouseButtonDown(0)) {
            RaycastHit hit;
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out hit))
                if (hit.rigidbody != null)
                    hit.rigidbody.AddForceAtPosition(ray.direction * pokeForce, hit.point);
                
            
        }
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public pokeForce as single

    def Update():
        if Input.GetMouseButtonDown(0):
            hit as RaycastHit
            ray as Ray = Camera.main.ScreenPointToRay(Input.mousePosition)
            if Physics.Raycast(ray, hit):
                if hit.rigidbody != null:
                    hit.rigidbody.AddForceAtPosition((ray.direction * pokeForce), hit.point)