Meteor passes earth
In the year 2880 there is a projected collision of earth with meteor '1950DA'
the last meteor that passed earth (at nearly the same distance as the moon has to earth)
click inside applet or use the letters
'1' to '3' to change trajectory
click here for further trajectory calculations
|had a reported diameter of about 300 m.
|With a radius of r=150 m one could use the following formulas to calculate its volume and mass (if the density rho is known
|or estimated from the fact that most meteorites mainly consist of metallic materials) :
2.) simplified optical distance measurement
click inside applet and type the letters 'a' or 'b' (in lower case) to enter
the distance respectively length values of the 2 sides a and b of a common triangle.
type the letter 'c' to enter the angle omega (in RADians) between the two sides
(or simply click at the desired side or the angle omega to activate corresponding entry)
type 'd' to convert an entered angle from DEGree to RADians
type "=" or "?" to compute the third triangle side
(the 2 length values of side a and b and the angle omega are necessary for the calculation)
click here for further 90 degree triangle explanation
(this page has been updated on April-10-2004)