public double vincentyDistance(LatLong other) {
        return LatLongUtils.vincentyDistance(this, other);
    }
@Test
    public void vincentyDistance_originToNorthPole_returnDistanceFromPoleToEquator() {
        // This is the origin of the WGS-84 reference system
        LatLong zeroZero = new LatLong(0d, 0d);
        // Calculating the distance between the north pole and the equator
        LatLong northPole = new LatLong(90d, 0d);

        double vincenty = LatLongUtils.vincentyDistance(zeroZero, northPole);
        assertEquals(DISTANCE_POLE_TO_EQUATOR, vincenty, 1);
    }