40th anniversary of the first Moon landing

by James

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Credit: http://www.flickr.com/photos/fleur-design/

This month sees the 40th anniversary of the first manned mission to land on the Moon. On July 20 1969, Neil Armstrong and Buzz Aldrin became the first humans to set foot on the Moon, as Michael Collins orbited above in the Apollo 11 Command Module.

It also seems as if one of the long-standing issues concerning the first landing might have been resolved. There has always been debate over whether Armstrong omitted an ‘a’ from his famous first words as he stepped onto the Moon’s surface. Without saying ‘a man’, man and mankind have much the same meaning in the words: “One small step for man. One giant leap for mankind”.

It had been argued that Armstrong failed to say what was intended, or that the ‘a’ was perhaps lost in the static of the radio transmission. The latter seemed to be confirmed in 2006 when analysis showed that there was time in Armstrong’s speech for an ‘a’, but the most recent evidence claims that the ‘a’ was definitely never spoken.

Although incorrect grammatically, it is suggested that the omission was intentional by Armstrong to make the phrase more poetic, and that he draws a distinction between ‘man’ and ‘mankind’ by using rising and falling pitch for each word respectively. Guess it comes back to the old adage that it’s not what you say, but how you say it….

Aside from the linguistic debate, I’ve always found the Moon landings fascinating. What must it feel like to look back at Earth from the surface of the Moon, or similarly after the mission, to stare up at the Moon in the night sky and think that you have been there? It’s not really surprising that many of the Apollo astronauts had difficulties adjusting to life back on Earth when they returned.

To mark the special occasion (and also probably the last post of the year before you all break up for the summer!), here are some fantastic Moon-related clips from HVG. It was very difficult to decide which clips to post due to the number of Moon/Space-related clips that can be found in the gallery. Have a look for yourself by taking out a free 30-day trial and using the search function at the top of the page. Most of them can be found in the KS3 Science (‘Earth, Space and beyond’ substrand) and Key Stage 1&2 Science (QCA Unit 5E: Earth, Sun and Moon) modules.

The two sample clips I have chosen are from KS3 Science. The first (actually located within the ‘Reflection’ theme of the ‘Energy, electricity and forces’ substrand) shows how a mirror left on the Moon by one of the Apollo missions is still used today to measure the distance from the Earth to the Moon.

Title of clip	Mirror on the Moon
Curriculum location	KS3 Science  >  Energy, electricity and forces  >  Energy transfer and electricity  >  Section: Reflection  >  3.1a energy can be transferred usefully, stored, or dissipated, but cannot be created or destroyed
Description	A report looks at how the distance between the Earth and the Moon is measured accurately using a laser and a mirror that was placed on the moon by Apollo 11 astronauts in 1969. The report includes original images and photographs taken on the Moon’s surface and an interview with a scientist who describes and explains how the mirror on the Moon and the laser telescope are both used to calculate the distance between the Earth and the Moon accurately.
Duration	2 minutes 18 seconds

 

With it being the 40^th anniversary, the second sample clip had to be one that included some of the original footage from the Apollo missions. This video of an astronaut experimenting on the Moon demonstrates that Galileo’s prediction that in a vacuum, a hammer and feather would fall to the ground at the same rate, was correct…

Have a great summer break !

Title of clip	The hammer-feather drop
Curriculum location	KS3 Science  >  Energy, electricity and forces  >  Forces  >  Gravity and resistance  >  3.1b forces are interactions between objects and can affect their shape and motion
Description	NASA astronauts, on the moon, perform a demonstration to prove Galileo’s thought experiment that a feather and a hammer will fall with the same acceleration, in a vacuum, regardless of their mass. On Earth, air resistance will effect the fall of the feather.
Duration	35 seconds