Using a Lascells cloud chamber with a fan-cooled plate?
The key isn’t more radiation—it’s better setup:
✔️ Give it time (10–15 mins)
✔️ Maximise airflow & cooling
✔️ Get the alcohol balance right
hemelprivatetuition.blogspot.com/2026/03/gett...
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Study Physics with an Expert Tutor! Online Physics Tuition Classes 9 to 12 by K Pavan Kumar Reddy – India Tutor – indiatutor.in/teacher-list...
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Why does a battery’s voltage drop when it powers a circuit?
The answer is internal resistance
What internal resistance is
How to measure it experimentally
Why it matters in real devices
hemelprivatetuition.blogspot.com/2026/03/inte...
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A @pascoscientific Smart Cart launches a ball vertically while moving at constant speed… Yet the ball lands straight back in the cart. In the blog we explore why?
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SHM on a spring — but with real data. @pascoscientific sensors capturing x, v, a and F and you can literally see the phase differences:
v is ¼ cycle ahead of x a (and F) are ½ cycle opposite x
hemelprivatetuition.blogspot.com/2026/03/simp...
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Resistivity = how “stubborn” a material is about carrying current.Same wire, longer length → higher R.Same wire, thicker → lower R.Try it with a slide wire + meter rule.
hemelprivatetuition.blogspot.com/2026/03/resi...
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@pascoscientific Light Sensor day in the lab. It’s amazing how quickly “that looks brighter” becomes proper physics when students can measure illuminance in real time.
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230 V isn’t actually 230 V.
The UK mains peaks at ±325 V!
RMS voltage explains why.
If you're studying A-Level Physics, this is a must-understand topic.
hemelprivatetuition.blogspot.com/2026/02/a-le...
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Polarisation with light can feel like magic. Polarisation with microwaves feels obvious.
Rotating a microwave polariser from @lascells and it clicks.
hemelprivatetuition.blogspot.com/2026/02/pola...
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How far away are the stars?From parallax to Cepheid variables, A-Level Astronomy uses some beautifully clever physics to measure the universe
hemelprivatetuition.blogspot.com/2026/02/a-le...
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Why don’t astronomers use lenses anymore?
In AQA A-Level Astrophysics, telescope design matters as much as what you observe. Mirrors beat lenses.
hemelprivatetuition.blogspot.com/2026/01/tele...
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📚 Learn key definitions
Be ready to clearly define terms, such as what an acceleration of 3 m/s² actually means.
💡 Small strategies = big confidence in the exam hall. You’ve got this!
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