GE tests a new engine on a 747 and boy does it look weird - CNET

GE tests a new engine on a 747 and boy does it look weird - CNET:
"Commentary: When GE tests a new engine, it mounts it on an old plane. The GE9X is a lot bigger than a 747's existing engines.
...Here, for example, is a video of a Boeing 747-400 taking off.
But something doesn't look quite right. 
One engine looks far bigger than the others.
Is this someone's idea of humor?
Not at all.
For one, the video was released two weeks ago...
Instead, this celebrates GE Aviation's March 13 maiden test of its new GE9X engine, one that is set to power Boeing's new 777X planes.