Physics in the Freezer

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Physics in the Freezer

Physics in the Freezer

@SubZeroPhysics

Science communicator; data scientist @UWEBristol - posts are my own. Presented at WOMAD, Green Man, bluedot, UK Big Bang, NI & Cheltenham Science Festivals!

Bristol Area, UK شامل ہوئے Ekim 2023
89 فالونگ39 فالوورز
پن کیا گیا ٹویٹ
Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
The fact New Scientist even needs to ask the question "Should we incinerate a planet for treasure?" suggests humanity has taken a wrong turn somewhere. 🌍🔥🪙 Ignoring that 💎are only valuable because of their scarcity tells us something about the state of #journalism... 🤦‍♂️
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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
Putting the sovereign on a tiny raft and bringing a very strong magnet close to it, the coin was repelled and so it may indeed be gold! I am so grateful to my mum for everything she did for our family and the wider community. Without her there wouldn’t be a Physics in the Freezer, and I hope this experiment is a fitting tribute the joy of knowledge that she inspired in me. Thanks mum, we miss you lots ❤️ 3/4
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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
My dear mum passed away in late September - today would have been her 84th birthday 💔 Sorting through her possessions we found what appeared to be a gold sovereign, and I was finally able to do an experiment that I'd always wanted to 🥹 You see, gold is diamagnetic… 1/4
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Dr Amanda Webber
Dr Amanda Webber@doc_webber·
It's time to leave. #Science and #scicomm twitter were not perfect but they were a community. @elonmusk has never understood that, for him it's just a toy to manipulate and break. Join me on LinkedIn - or direct me to our new home!
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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
I would (marginally 🙂) agree that salary sacrifice used in this way is not avoidance... In essence one only receives tax relief on 25%, as the other 75% is tax on withdrawal. The deferred tax may be at a higher rate (change in rate, larger income)... And the investment stimulated may generate a higher overall tax receipt - income is more likely to be spent and the investments made are likely to generate more money to be taxed in the long run. Not to mention giving the person investing a higher income in their twilight years potentially reducing the amount the state needs to spend from receipts to support them than if their income were lower.
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Dan Neidle
Dan Neidle@DanNeidle·
Some harder ones: I would say none of these cases are tax avoidance, because in each one a person is making a choice that is anticipated and permitted by tax legislation, and which has actual consequences. Others may disagree.
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Dan Neidle
Dan Neidle@DanNeidle·
What is tax avoidance? How's it different from tax evasion? Why can't we make tax avoidance illegal? I have an infographic and a thread:
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Spencer Kelly
Spencer Kelly@spenley·
The only technology news that I never wanted to have to bring you. From me and @LaraLewington, thank you so much for having us.
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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
Worth a read!
Spencer Kelly@spenley

Friends! Yesterday was very tough, but, on behalf of my mental health, thank you SO MUCH for your boundless love and kindness. It was so emotional to be reminded of how important we’ve been to so many people. Now - to the future. Would you like to stay in touch? Would you like to help me get something new up and running? I’ve been writing a free monthly newsletter for a little while - it has new tech, behind-the-scenes stories and many Click flashbacks. It’s still a work in progress, but it’s written from the heart. And I narrate it too. Would you be kind enough to subscribe? And it would mean a lot if you could repost this, so I can try for a quadrillion subscribers... (my maths tells me that should be achievable) The link to subscribe is in the reply to this tweet (to stop the algorithm suppressing it), but that link is also in the attached image. Again, thank you so much for yesterday.

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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
@graeme_cobb Don't get me wrong - I absolutely love regen and theres something about having the skill to manage junctions without friction! But yes - love the choice especially on the motorway 🙂
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Graeme Cobb ⚡️🚙🚗 ⚡️
Graeme Cobb ⚡️🚙🚗 ⚡️@graeme_cobb·
What I love about strong regen is the ease with which to maintain speeds within the speed limit on the flat or down hill. There’s much more control with just one pedal vs coast mode in ICE auto’s, for example. There’s never a sensation of runaway, and so I turned off creep mode, too. However, everyone is different and people like choice.
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Graeme Cobb ⚡️🚙🚗 ⚡️
Graeme Cobb ⚡️🚙🚗 ⚡️@graeme_cobb·
Regen Braking - Why the Multiple Choice? ⚡️🚗🗻🚗⚡️ I don’t understand why electric cars need flappy paddles, toggle switches, B Modes or multiple options for regen braking. I’ve had two EVs and both had strong regen which brought the car to a stationary position. The amount of regen I gave the car was controlled by my right foot via the accelerator peddle. I can coast, I can firmly brake and I can judge how much regen is required simply by the pressure applied to the accelerator peddle at that given moment. It took a while to get used to it when I swapped out of my petrol auto to an EV, but I quickly enjoyed the regen braking. My wife’s MG has three modes which I describe as: ⚡️No regen ⚡️No where near enough regen ⚡️Still not enough regen I keep it in the 3rd mode but it still requires me to press the brake peddle a lot. It’s a missed opportunity not to have a fourth option: ⚡️This will stop the car mode So, why do motoring journalists (and possibly some everyday drivers) love the option of choosing regen strength so much? I just don’t get it. Questions: 🤔Do you paddle/toggle/switch through the modes seamlessly on a trip? 🤔Do have a preferred setting? 🤔How strong do you like your regen? 🤔Do you prefer it to drive like an auto ICE car? Let me know your thoughts, but whatever your opinion,and most importantly, have a great day ahead, folks.
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eVNewt⚡️🔋🚙
eVNewt⚡️🔋🚙@eV_Newt·
Already have 2. The eV6 and 500e. I’d swap the eV6 for a Nio ET5T if they did them here. Other two would be: also the MG Cyberster and the Renault 5 (but a close runner up would be a Fiat Topolino)
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Tim Oldland@Timoldland

Limiting myself to 4 EVs, so… My daily: Model 3 Performance Family/off road car: Rivian R1S Wife’s daily: Fiat 500e Fun car: MG Cyberster As we can’t get the Rivian over here I’d swap that for the Range Rover P550e, or the new Range Rover EV.

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Tim Oldland
Tim Oldland@Timoldland·
Limiting myself to 4 EVs, so… My daily: Model 3 Performance Family/off road car: Rivian R1S Wife’s daily: Fiat 500e Fun car: MG Cyberster As we can’t get the Rivian over here I’d swap that for the Range Rover P550e, or the new Range Rover EV.
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DogJr@DogJr2fast4u

4 CAR CHALLENGE: Electrified Garage You're looking to make a 4 Car Garage. However you're restricted to Full Hybrids, Plug-In Hybrids, and EVs only. (NO Mild Hybrids) You have a generous total budget of $350k, individual prices based on the MSRP when it was new. Your picks?

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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
Really excited to see how quickly this technology is progressing! Can't wait to see @gridfaeries x @ecotricity's even larger deployment planned for #WOMAD2025... ⚡️🔋🎶 H/T @RadioWomad
Dale Vince@DaleVince

On site with the @BBCBreakfast - ahead of the @MassiveAttackUK gig. It’s the first event of its size to be powered entirely without diesel and following a fab new eco standard known as Act 1.5.  Energy, Transport and Food are the three big areas of focus - 80% of all carbon emissions are in those areas of life.  And this event is entirely plant based - very chuffed to have helped make that happen.  This event sets a new standard for others to follow (hopefully).

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eVNewt⚡️🔋🚙
eVNewt⚡️🔋🚙@eV_Newt·
Well, the panda made it 3 miles before conking out on me in an Italian tizzy. Needs more fuel I think/hope. Oh old cars. Who’d want them. 🤪
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Physics in the Freezer
Physics in the Freezer@SubZeroPhysics·
@snacksEV @InstaVoltUK @mozzaev @Spikebmth @newt7215 Weird experience a couple of weeks ago. Had to rapid charge at both an A-road services near Weston-super-Mud and at a motorway services near Reading. The 150kW charger at WsM was 12% more expensive than the 350kW charger on the motorway 🤯
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