Showing posts with label Apollo. Show all posts
Showing posts with label Apollo. Show all posts

Thursday, 20 July 2017

Science Friday: Collect rocks, plant flag

Every year that goes by firms my realisation that putting people on the moon was an absolutely stunning achievement.

Almost 50 years ago a massive team of engineers helped put 3 highly skilled men in orbit around that giant rock in our sky, that is stunningly distant, yes infinitesimally close, then land, then take off again.

While still doing the math by hand.

I think the best perspective of the distance in a scale overhead.

Ranging the moon
It's best behind a bunch of black, or a view from a telescope orbiting Mars., but consider it in light seconds.

Wiki

Then put some men in a hunk of metal utop a chemical missile rocket over a period of days.

Last year the twitter account @ReliveApollo11 recreated the days surrounding the landing, to help those of us too young to have experienced the timeline over the wireless as it happened.

Anyone can view it, and I highly recommend you try transport yourself to another time.

Blog title thanks to the 10c New York Times from that day #Apollo11

Monday, 16 May 2011

An random insight into computing history

In the days of reaching the moon, we amazed ourselves with the mathematical capability we empowered our machines with.

Apollo's 32kg guidance computer was basically 2Mhz and it's memory measured in kilobytes, and gave Neil Armstrong a cryptic memory error just seconds from landing on the moon.

It used to be said that the apollo spacecraft technology is blitzed by "today's" vehicles. Well, today's vehicles are way ahead now, and we can find electronics that exceed Apollo computing power everywhere. This article compares the guidance computer to a 2009 smart phone. I tried to find the exact specifications for something less conspicuous like anti-lock brakes but alas.

Where am I going with this? Recently I was cleaning out the extended garage and found an old computer I was yet to dispose of. This was partially due to nostolgia, and another part of me thought I might be able to find some use for it - well, I did find a use - amusement.

As I pulled it apart, I thought I'd take a few photos and document the occasion. It was dated 1999 so I imagine this is what got me through university. I know 1999 isn't exactly looking through a wondrous time portal, but it was enough to keep me amused for a while - amusement which started with the 5 1/4 inch disk drive!
Looking in the guts I'm surprised at the lack of a modem, unless I moved that 56k beast to a different pc. Another look at the front shows it is a bit of a mutt, with cd drive upgraded to dvd & pasty old disk drive installed to pilfer data off old disks.

The computer belonged to the era where hard disk space was doubling and this affected what (and the amount of) software you could install. Today, space requirements for software such as your operating system is simply absorbed into the mass amount of storage available. I could tell you DOS6 fitted on a handful of 3.5" disks, I can't tell you how much Windows 7 now consumes. Yes, my first computer was an XT using DOS 3ish.

Here is a fuzzy look at the mutilated insides, the close-up shows the original 1GB HD, and the 8GB upgrade, with the Pentium II core and 64mb RAM.

The back of the PC shows the March 1999 build date, with pride by PLE Computers - our local mainstay.

I just noticed the whopping 2 USB ports, wasn't much need for them back then, because at this time for data transfer we all used ZIP drives.

A nice 100/250mb of data in the one iomega disk, great for holding (and potentially losing) all my university work. I was prudent with my backing up - apart from theft and stupidity, with excessive use we also had to avoid the click of death, which (why should I be surprised) you can listen to on Wikipedia.

And on a side thought, one of the podcasts I listen to talked about how much data capacity exists around the world (if that's the right phrase to use) - a result of some study. A secondary finding to that was much of the world's data is redundant. Isn't that a fascinating conclusion, but when you think about it, it becomes completely obvious. We are all consumers of data, downloading what companies around the world have to offer. We also share information - music, videos, photos - all of which could easily be replicated on multiple computers, backup disks, internet servers. I'd like to know how much purely unique data might exist out there? Perhaps a mass amount - I wonder how much the LHC would produce in a few minutes?

Random mentations of an Oracle developer...

Tuesday, 21 July 2009

Forty years ago...

I don't aim to make too many off topic posts, but I think this one is worth a mention for such a poignant occasion - to my interests anyway.

Congratulations to the entire team involved (and their respective families) in putting Neil Armstrong, Buzz Aldrin on the moon, & Michael Collins who had the opportunity to orbit it (which facilitated the most isolated meditative experience known to mankind!)

I also look forward to seeing the higher resolution pictures the Lunar Reconnisance Orbiter (LRO) will take of the Apollo landing sites. Here are the first images taken during flyover whilst it's orbit is still settling down. I'm sure there was limited coincidence in these images becoming available near the 40th anniversary, even though there was question marks over available launch dates a few weeks ago for this little machine.

I think Buzz Aldrin's autobiography would be a good read...