Can you tell me something I probably never knew?

 Most people don’t know about the largest ship of all time:

The Knock Nevis was an Ultra Large Crude Carrier (ULCC) that sailed the oceans from 1979 to 2010. Throughout her career she had a bunch of names like Seawise Giant, Happy Giant, Jahre Viking, Knock Nevis, and Mont.

The ship was over 260,000 gross tons, had a displacement of 646,642 long tons when fully loaded, a length of 458.45 meters, a draft of 24.611 meters, a depth of nearly 30 meters, and an average speed of 16.5 knots. Her deck was nearly 7.8 acres and to put that into perspective, most houses in the United States are on a lot of 0.2 acres:

The ship was an absolute beast and was actually too big to safely navigate the English Channel, Suez Canal, and the Panama Canal. In clear weather, it took her two miles to make a complete turn around and five and a half miles to come to a complete stop.

To put the insane size of this ship into comparison, here she is up against some of the world’s tallest buildings:

Throughout the last half of the last century, the Suez Canal was closed multiple times due to instability in the region. This meant that ships had to sail all the way around Africa to get where they needed to go. Since it was now a much longer trip it made sense for companies to start building insanely large ships to make up for it. Because of the very unique situation that allowed this ship to exist in the first place, I doubt her record will be broken anytime soon.

In 1988 she was sunk during the Iran-Iraq War but was salvaged and returned to service. It was only in 2004 when she was laid up and 2010 when she went for scrap. If you thought Titanic was the largest ship out there, she is a kayak compared to this:

Why did not Shahrukh Khan and Kadar Khan work together?

 Shahrukh Khan and Kader Khan never worked together. Kader Khan had a cameo in “Oh Darling Yeh Hai India”, as one of the bidders.

Though they were in the same location for a scene they did not had a dialogue exchange.

The main reason for their non-collabration was that their peak careers didn't perfectly overlap. During the initial stages, Shahrukh gained fame as an anti-hero followed by a romantic hero. At that time Kader Khan had just stepped out from villainous roles and was on his comedy streak especially with Govinda and David Dhawan.

Besides this, their preferred teams were different too. Kader Khan worked extensively with David Dhavan at that time while Shahrukh’s major collabrations were with Yash Chopra and Karan Johar.

Post - 2000s Kader Khan also had significant health issues which was later followed with a knee operation and wheel chair dependency which limited his participation in films.

So there was no professional conflicts between the two. The main reasons for their non-collabration was differences in their career timelines, lack of suitable opportunities and natural divergence of their individual film trajectories.