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Posts Tagged physics
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There’s no joke here, I just thought that Itchy and Knee deserved to have a bit of enjoyment now and then. And the idea of their round heads in round space helmets was irresistible.
[I did this drawing in black ink for Inktober, and then inverted it during scanning.]
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Itchy and Knee play tennis... in space.
Another interesting talk at the Oxford Skeptics in the Pub meeting — Mark Lynas is an eco-activist who came to the conclusion that GMO is not necessarily bad, and that Organic isn’t necessarily good, using the power of critical thinking. One interesting point he made is that the degree of scientific consensus supporting GMO safety is roughly the same as that supporting climate change. So if you think critically you have to accept both (or possibly neither?)
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Science in the Age of Post-Truth, by Mark Lynas 2017-02-01
Trump for a reason - we abandoned reason.
Royal Society - Nullius in Versa
GMO - destruction of crops
Science support for climate change = science support for GMO saftey
Virus resistant cassava
an entire maize crop (drought in Tanzania)
BT aubergines
Dosimeter at Fukushima
Golfball sized piece of Uranium
Wind turbines won't be enough
E. Coli from Organic food - kidney failure
1961 technology -- you'd need this much extra land for agriculture [2 x USA]
join Refugees Welcome in Oxford
Gene drive vs. Malaria
40% coal (UK) -> 10% coal
identity bubbles get smaller and smaller
Plea: be an activist on critical thinking.
Trump for a reason - we abandoned reason.
Royal Society - Nullius in Versa
GMO - destruction of crops
Science support for climate change = science support for GMO saftey
Virus resistant cassava
an entire maize crop (drought in Tanzania)
BT aubergines
Dosimeter at Fukushima
Golfball sized piece of Uranium
Wind turbines won't be enough
E. Coli from Organic food - kidney failure
1961 technology -- you'd need this much extra land for agriculture [2 x USA]
join Refugees Welcome in Oxford
Gene drive vs. Malaria
40% coal (UK) -> 10% coal
identity bubbles get smaller and smaller
Plea: be an activist on critical thinking.
The very energetic and interesting Dr. Helen Czerski presented “We need to Talk about Physics” at today’s meeting of Oxford Skeptics in the Pub. We learnt why blueberry jam isn’t blue; why the Hubble telescope is like a raw egg; and why there is a lot of physics still to do to understand everyday phenomena (such as how bubbles move in a turbulent fluid.)
I’m afraid the likeness is worse than usual. Dr. Czerski doesn’t do standing still.
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PV=nkT
oceanographers
graph of time vs size: quantum / cosmos, life in the middle
benedicts' reagent and blueberry jam
slosh damping bubbles -- frequency of slosh depends on size of cup. Walk slower (or faster)
Mexico city eqrthquake: freq(quake) = freq(buildings) Tai Pei 101, pendulum inside resists toppling
Helium powered gas gun -- jelly diamond catcher
toaster: far more interesting* than a distant star -- and it makes toast! (*maxwell's laws, *black body radiation)
"What can you do when you know that?"
body - planet - civilization (life support)
physics ducks
Homework Experiments:
1. raisins in lemonade...
2. watch spilt coffee dry...
3. tap the rim of a tea cup...
4. slide buttered toast off the table...
oceanographers
graph of time vs size: quantum / cosmos, life in the middle
benedicts' reagent and blueberry jam
slosh damping bubbles -- frequency of slosh depends on size of cup. Walk slower (or faster)
Mexico city eqrthquake: freq(quake) = freq(buildings) Tai Pei 101, pendulum inside resists toppling
Helium powered gas gun -- jelly diamond catcher
toaster: far more interesting* than a distant star -- and it makes toast! (*maxwell's laws, *black body radiation)
"What can you do when you know that?"
body - planet - civilization (life support)
physics ducks
Homework Experiments:
1. raisins in lemonade...
2. watch spilt coffee dry...
3. tap the rim of a tea cup...
4. slide buttered toast off the table...
Here’s a little cartoon I drew for an audio hardware competition. Karen drew the basis of the organ console section some years ago. I adapted it for this purpose, and added the performer and the amp in the foreground. Wish us luck!
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woman plays and sings with gusto, into a gigantic, fantastical, multifunctional organ console complete with audio microphone and tea-making equipment. The output sound however is limited by the amp, and is deeply underwhelming.
You must ask nanny, or the butler, to help you with step 2.
We were discussing how cats always fall on their feet, moved on to the well known anti-gravity device involving one cat and one jammy (or buttered) slice of bread, and somehow ended up here with very jammy fingers.
Mercy edit: This comic likely makes little sense to those unacquainted with the concept of the conservation of angular momentum. In fact, this comic likely makes little sense.
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1. You will need 1 slice of bread, jam and a knife.
2. Cut the bread to make a triangle with two 45-degree angles.
3. Spread jam liberally on one side only.
4. Hold jam-side-up, about 1m [39 in.] above the floor...
5. ...and release.
6. Observe. We have demonstrated Momentum of Angular Conserve.
2. Cut the bread to make a triangle with two 45-degree angles.
3. Spread jam liberally on one side only.
4. Hold jam-side-up, about 1m [39 in.] above the floor...
5. ...and release.
6. Observe. We have demonstrated Momentum of Angular Conserve.
Again, drawing on my tablet, this time using the Autodesk SketchBook Pro app for Android for drawing and colouring each panel. However, I resorted to Gimp on my desktop machine to make the composite. I’m still looking for the perfect comic-making app.
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Itchy and Knee play on the swings and roundabouts. In their usual style they play too hard, and go flying. After a near-miss in mid-air they manage to land safely, if awkwardly, on the still swinging and spinning rides, having now swapped places with each other. Caption: The swings and roundabouts of outrageous fortune.
I made this comic on my Android tablet, using Autodesk Inc.’s Sketchbook Pro for Tablets. It’s a little bit fiddly, but I think it came out all right.
I’d like to thank Karen for suggesting the comic.
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no no no! I /don't/ doubt your ballooning qualifications!
Caption competition: provide a better caption for this drawing!
Drawing competition: provide a better drawing for this caption!
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"In other news, scientists announced today that they believe they have conclusively proved that rabbits' feet are not lucky."
I would like to preempt any complaints about violations of the laws of physics by pointing out that (1) in Invisibulia those laws are somewhat different (and indeed we know that photons need follow only a very relaxed set of Maxwell’s equations, who knows how space-time might or might not interact with magnetism); and (2) this is a comic.
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1. (I bought these _fantastic_ fridge magnets) [really?]
2. (they are so strong they bend space-time around the fridge) [is that good?]
3. (yes, and no)
4. (it means the food keeps for _ages_) [and the down side?]
5.
6. (I'm now my own grandfather)
2. (they are so strong they bend space-time around the fridge) [is that good?]
3. (yes, and no)
4. (it means the food keeps for _ages_) [and the down side?]
5.
6. (I'm now my own grandfather)