We tend to think of a scene as 2D but it is of course 3D. It turns out that the apparent height of an object in the reflection depends on how far it is away AND on the height of the observer.
We say, "a mirror image" to mean identical but look carefully at this photo. The spire appears higher than the building to the right - and the moon appears to be higher than them both. Yet in the reflection the moon appears to be the same height as the house with the spire below them. Why?
For optics friends: Some interesting reflections! For other friends: A nice photo of beautiful Strasbourg I took earlier this week.
See comments for description
A new set of World University rankings from Time. Good to see Leeds Uni at 55 in World and 11 in Uk !
time.com/7358185/top-...
For Everything to Stay the Same, Everything Must Change ... a riposte to academic nostalgia by @profserious.bsky.social profserious.substack.com/p/for-everyt...
#HigherEducation #Universities #HEPolicy #HELeadership #UniversityLeadership
Durham looking great on a winter evening !
Good morning Leeds
If you're interested to hear my journey from teenager in Leeds to becoming the Head of Computer Science, and also hear some of my music choices, then you can download my recent guest appearance on Rangoli Radio with Aishni Choudhary and Rashik Parmar MBE.
lnkd.in/eB3Tfxu4
A weekend experiencing the Leeds Music Scene! Friday involved a visit to the lovely Yeadon Town Hall to see local band - The Dunwells. Then Sunday - the stadium - to see Mumford & Sons . Banjos were in evidence at both !
Loved appearing on Rangoli Radio this morning as a Rangoli Role Model (!) - think “desert island discs”. Watch this space for the online version appearing soon !
Our students and staff were inspired today hearing from @imdb.com founder Col Needham about his journey from studying computing at Leeds to leading the World’s authoratitive source on films and entertainment!
Congrats on getting the grant in ! I might add that your graph looks a bit linear ! Mine would look a bit more exponential ! 😂
I am still waiting for a letter from Stockholm but in the mean time here’s an old photo I unearthed of my better half 30 years ago holding the Nobel medal of CV Raman! The 1930 prize winner for physics for his work on light scattering and the Raman effect.
This report by King's College is a great summary of TRAC and some of the challenges and progress that the TDG (on which I serve) has dealt with. Bottom line: I get that some of you don't like TRAC but there is much of value in the data we need to lean into!
www.kcl.ac.uk/news/univers...
Old photos of the University of Leeds campus I took when I was a summer intern in 1985 (I was 5 😂)! There’s a tree in the middle of Clothworkers Court and the lab was in the Department of Colour Chemistry in what is now the @leedsunimedia.bsky.social .
@samlp.bsky.social @joannegh.bsky.social
This is my local in Leeds. A hidden away gem and now #1 pub in the country #goodfoodguide
There’s beauty everyone you look! Would you expect to see such a floral display close to November literally on top of a motorway? Given you a big clue there - but where was this taken?
Good morning, Leeds
A weekend of Sun Pillars
Huge congrats @jtimaging.bsky.social !!
I'm delighted to share the news that I've been promoted to (full) Professor. Feeling very thankful for all those who have mentored and supported me over the years, the smart and enthusiastic team I get to work with on cool science, and the colleagues who make Glasgow a great place to work.
Why do some animals have slit-like pupils?. This nice vid does a great job of explaining some of the subtleties that myself and Martin Banks articulated in our 2016 Science Adv. paper. If you get bored of the optics there's some cure pics of cats!
www.youtube.com/watch?v=V6UT...
It’s a couple of days past the solstice but this is when the Sun sets the latest. The Sun rises the earliest before the solstice and the longest day is really a compromise between the two. Why ? I think because the Earth’s orbit around the Sun is elliptical so it doesn’t go at a constant speed
2025 is the 200th Anniversary of Railways - which started in the NE of England with the Stockton Darlington Railway . Here’s the train statue on a lovely day ! For pedants - it actually ran from Shildon to Stockton. Ps I am not a train spotter but feel I’m on a slippery slope 😂
Pleased to say that I will no longer have to wear two pairs of spectacles at work simultaneously. Due to the arrival of new ones. Like Dominic Cummins I get my eyes tested in the North East. New specs have my name laser inscribed to aid in future losses but haven’t figured out how to read it yet !
Scientists claim to have discovered 'new colour' no one has seen before www.bbc.com/news/article...
Amazing experiment by @roordalab.bsky.social and Team !
Pre Easter School Colloquiuem from one of our new(ish) Leeds faculty colleagues - @repromancer.bsky.social - on AI and neuroscience. “Brain-like learning with exponentiated gradients.”
Come and join me in the amazing Bragg Building as Head of the School of Physics and Astronomy ! Durham friends - it’s even got state of the art labs dug into the basement jobs.leeds.ac.uk/vacancy.aspx...
Partial solar eclipse today in Richmond, Yorkshire. Sometimes a bit of cloud improves the viewing !
Sunrise over Leeds! The time lapse video of the sunrise shows a sun pillar - the vertical light beam above the Sun moving across the sky as the Earth rotates.
