university academic and all-round engineering nerd.
Joined November 2008
- Tweets 13,194
- Following 820
- Followers 646
- Likes 10,582
737 Photos and videos
28 Apr 2024
Thought I'd check out the 5th edition of Roddy et al., Sat Comms book since it was available online at the library. Opened the chapter on Radio Wave Propagation. Quickly closed it.
ALT Snippet of diagram from book (incorrectly) showing vertical structure of atmosphere: Troposphere shown from 0-90 km. There is no stratosphere. It then shows the mesosphere out of place at 400-600 km (should be ~100 km). Ionosphere shown as stopping at 400km, starts at 90 km (which is OK for D, E region).
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Robert Watson retweeted
10 Apr 2024
Stealth School: By alternating tail flaps, groups of mackerel can swim silently. Or flap in unison to sound like a big fish. @jhumeche Prof Rajat Mittal's research offers insight into why fish swim in schools and could lead to dev of quieter submarines engineering.jhu.edu/news/wha…
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Robert Watson retweeted
9 Mar 2024
On Friday 23 February, @CroydonHigh hosted an event to celebrate the success of Mission Aspiration and announce Astrogazers new mission, Mission Pegasus. Astrogazers were phenomenal and it was great to hear from @CroydonHighHead, Prof Cathryn Mitchell and @robert_watson.
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15 Feb 2024
Just logged back in to ask what the heck have Analog Devices done to their website. Message ends.
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Robert Watson retweeted
15 Jan 2024
We are incredibly proud of you Mrs Karteepan and your outstanding contributions to promoting Astronomy and Space Science within the school and community! 👏👏🚀🛰️
#AspireWithoutLimits
#WomeninSTEAM
#WomenInScience
12 Jan 2024
Arabi Karteepan of @CroydonHigh has been awarded the 2024 RAS Secondary Education Award for promoting #astronomy and space science.
She led one of the first successful launches from a UK school of an experimental high-altitude weather balloon.
Congratulations!
#RASawards
ALT Arabi Karteepan has been awarded the 2024 RAS Secondary Education Award.
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Robert Watson retweeted
17 Jan 2024
The Astrogazers Club at Croydon High School for Girls – @CroydonHigh – has reached the edge of space, inspiring the whole school & giving a boost to #STEM education. Head of physics Arabi Karteepan – @akarteepan – explains how! sec-ed.co.uk/content/best-pr…
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10 Jan 2024
Fabulous. I thought I had a book hoarding problem. rightmove.co.uk/properties/1…
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Robert Watson retweeted
29 Nov 2023
I just searched for "meteorite" on a well known search engine and was much cheered by what happened next.
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Robert Watson retweeted
24 Nov 2023
Tell me you've never seen a hammer before without telling me you've never seen a hammer before.
x.com/Flip5ide666/status/172…
Community note
This is not the full clip. The full clip shows the worker explicitly telling Rishi Sunak to use the hammer sideways.
Full clip: twitter.com/PolitlcsUK/sta…
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Robert Watson retweeted
30 Oct 2023
Bath: Police officers escort swan in Hot Fuzz-style incident🦢👮♂️
bbc.in/3MmJpEE
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Robert Watson retweeted
29 Oct 2023
Recently teams from JARTS worked alongside Dutch counterparts to recover a submerged Lancaster bomber lost in June 1943. They worked beneath sea level in a cofferdam to delicately and respectfully recover the aircraft and the three crew members who were lost when it crashed.
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26 Oct 2023
Can’t believe it was 20yrs ago that I was roaming around the streets of Boston in the rain. Cc: @dunc_h #whatwiththesefeet
ALT Keyring from MILCOM 2003 conference Boston in shape of a working latern with and incandescent bulb and LR44 battery
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5 Oct 2023
A student asked me earlier how long I’d been a Linux user. I showed them this. About 94% of Linux’s existence. First distro was SLS on a 386SX.
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Robert Watson retweeted
5 Oct 2023
Engineers from Bath are planning a 'swarm' of small satellites to help tackle the growing problem of debris in space, thanks to new @esa funding 🚀
#SpaceWeek | #WorldSpaceWeek
bath.ac.uk/announcements/sat…
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Robert Watson retweeted
4 Oct 2023
Advisor in the audience when PhD student steps up to give a conference talk.
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4 Oct 2023
Well that’s given the deck chairs on the Titanic thoroughly good rearranging.
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28 Sep 2023
A couple of weeks ago we helped a fantastic group of Croydon High School students launch a weather balloon. Here's how it went: youtube.com/shorts/P5bdHCTyh… (pls give their videos a like if you're as impressed as I was)
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3 Sep 2023
Wonder if @bbc5live know they've left the commentary mike open after the coverage has ended? Hearing a one sided conversation with Jolyon Palmer.
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Robert Watson retweeted
28 Aug 2023
#OTD in 1964, @NASA launched Nimbus-1, the first in the Nimbus series of meteorological satellites.
Shown here is an Automatic Picture Transmission (APT) device that allowed meteorologists to obtain immediate local photos when Nimbus-1 was within range of a receiving station.
ALT Photo of a "facsimile receiver" with the name Mufax on it: a 1960s version of a fax machine used to print out photos taken by Nimbus satellites.
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