Dr Julian Newman's Channel
By God's grace alone, I am a believer, an evangelical Christian, who has been saved by the gospel of the Lord Jesus Christ. All my manifold sins---for which no forgiveness is deserved, and for which unmitigated retribution would be entirely justified and laudable---have been completely washed away by Jesus' redeeming blood.
I am a mathematician by profession, and also enjoy music (listening, playing, a tiny bit of composing) as a hobby. This channel is where I upload videos on science, mathematics, musical analysis and interpretation, and other topics.
My other channel: youtube.com/channel/UCCHgw_gxDB2HgOND8ogG_Uw
Dr Julian Newman's Channel
What is the most beautiful equation in mathematics?
youtube.com/shorts/2D1h835vpB...
3 months ago | [YT] | 2
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Dr Julian Newman's Channel
Explore my new "Fun Maths & Science" quiz: www.youtube.com/playlist?list...
It has 15 questions [and so in principle, you could play Pretend-WWTBAM with it] plus a bonus question.
6 months ago | [YT] | 0
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Dr Julian Newman's Channel
True or false: "The multiplicative inverse of 0 is infinity."
6 months ago | [YT] | 1
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Dr Julian Newman's Channel
Were you told at school that point nine recurring is less than 1? If you select one of the first two options below, please also share in the Comments in which country and during which decade you went to school.
6 months ago | [YT] | 0
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Dr Julian Newman's Channel
A several-input XNOR gate outputs high voltage when
6 months ago | [YT] | 0
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Dr Julian Newman's Channel
At a certain instant in time, a rocket has a mass of 1 tonne and is moving right at 1 km/s, and is emitting fuel at a rate of 1 kg/s, and the fuel that has just been emitted is moving left at 2 km/s. The rocket is experiencing a drag of 2 kN to the left. Assume no gravity. What is the rocket's acceleration at that instance? [Please feel free to share your working in the Comments!]
7 months ago | [YT] | 0
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Dr Julian Newman's Channel
**Fairness Puzzle.** A person dies owing debts to five creditors, of $12k, $24k, $36k, $48k and $60k respectively. The person's total wealth at the time of death was
(Scenario 1) $120k.
(Scenario 2) $60k.
How should the wealth be distributed among the creditors [in $k]?
7 months ago | [YT] | 2
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Dr Julian Newman's Channel
If a probability distribution is known to be perfectly symmetrical about some unknown value C, can we necessarily estimate the value of C by just taking the mean of a sufficiently large simple random sample?
7 months ago | [YT] | 2
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Dr Julian Newman's Channel
Can the expected value of a random positive number be infinity? [Assume that the random positive number itself cannot be infinity.]
7 months ago | [YT] | 1
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Dr Julian Newman's Channel
Suppose I place a point particle at the top of a fixed, rigid, frictionless hill of shape y=|x|^1.5 [revolved around the y-axis]. Assume the particle has zero initial velocity, and the only forces acting on it are gravity and contact with the hill. Do Newton's Laws guarantee that the particle will stay still?
7 months ago | [YT] | 1
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