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What Happened to the Nuclear Test Sites?

In Videos, Weapons by Paul Shillito1 Comment

Since the formation of the united states, its mainland has never been invaded or had any major attack but there are places there which have had more nuclear explosions than anywhere else on earth. Of the 1054 US nuclear tests, 928 were carried out on the US mainland mostly at the Nevada test site but it wasn’t just the US testing nukes, the Soviets, British, French, Chinese, Indian, Pakistanis and recently the North Koreans have all tested nuclear weapons, some on their own territory and some in remote locations around the world in the air, on land, under water and …

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To Mars by 1982 – A Manned Mission Too Far, Too Soon ?

In space, Technology, Videos by Paul ShillitoLeave a Comment

With all the talk of manned Mars missions by Elon Musk and SpaceX and more recently NASA, it’s easy to forget that Mars isn’t a recent obsession. Now before we get into the details, this video is little different, this is my first collaboration and part two of this series will done by Isaac Arthur, who will be looking at the Mars missions from the roots of sci-fi in the 1990’s to those that are proposed for the coming decades, there’s a link in the description that will take you there and if you have come over from Isaacs channel, …

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How do spacecraft navigate in space ?

In Rockets, Science, space, Videos by Paul ShillitoLeave a Comment

How does a space probe like Voyager 2, which was launched in 1977, visit the 4 outer planets and travel over 17 billion kilometres over 40 years with almost next to nothing in the way of fuel. By the time Voyager 2 had reached Neptune, it had swung by Jupiter, Saturn and Uranus, travelled 7 billion kilometres and was still within 100km of it’s target and all with mid 1970’s technology. In the movies space craft just seem to fly to where ever they want and get there in no time at all but in our version of reality its …

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How Did NASA Lose a Mars Space Probe Because of Maths?

In Science, space, Videos by Paul Shillito2 Comments

For all the knowledge of the thousands of scientists and engineers in the space industry, sometimes the old adage “The best-laid plans of mice and men” can equally be applied to their efforts. This was certainly the case on the Mars Climate Orbiter mission of 1999 and this would go down in space history as one of the biggest facepalms to date. If you’re an avid comment reader, you may have seen comments on my videos about why I tend to use both Imperial and metric units, instead of just metric and the simple answer is that many people in …