Invention 49: Dog Repeller

Once in a while, I put up what I believe would be viable and profitable inventions -- that I don't, however, have the time to (fully) develop. Now the loudest whistle in the world (pictured) is the Hyperwhistle. This is more than 140 decibels, or some 100 times louder than an ambulance siren. The loudest dog whistle is less than 110 decibels, which is, say, 50 times softer than an ambulance siren. The Hyperwhistle is not designed for dogs -- it has a frequency of about 3 kHz -- while dog whistles have a frequency of well over 20 kHz. I have both owned and designed electronic dog repellers -- in fact, one of my designs is on this blog: Dog Repeller. This uses a small ultrasonic transmitter (0.5"), which cannot be very loud if it could be heard by humans. Yet it scares dogs. Now the invention here is: take the non-electronic Hyperwhistle, push up the frequency ten times, and create a Hyperwhistle for dogs. Even if it is "only" 120 decibels, it will be as loud as an ambulance siren for humans. OBSERVATION: There may be one problem, however. It may be thought to be unethical to hurt dogs' ears. At the same time, as a minister having visited many homes, I know what it is like to be nipped and even bitten by aggressive dogs -- and that hurts humans! The same for postal workers. A dog repeller can help.

Does ChatGPT Exclude Nature?

There is a great deal of discussion about how AI may misrepresent reality. Here is a question that I put to ChatGPT: "Does ChatGPT exclude nature in its answers?" That is, does it have a tendency to strip off nature? The answer is yes. This is what ChatGPT itself says. You may click on the image to enlarge.

Open Day

I attended Open Day at the Cape Town Baptist Seminary today -- see the photo. I am wearing a white shirt. Open Day included an introduction to the seminary, devotions, testimonies by students, and a sample lecture. OBSERVATION: The Seminary offers government accredited degrees, which is as good as it gets in South Africa.

Back in the Day

My sister obtained it from (I think) university archives. I am the boy in the middle foreground. OBSERVATION: I did some quick repair on this photo, to fix an obvious flaw (reverse vignetting). You may click on it to enlarge.

Worthy of Publication?

Last year, I wrote a work of philosophical fiction, titled The Lost Philosopher. But the fish (the literary agents) were not taking the bait. What was going on here? Why all the rejection slips? Today I asked DeepSeek AI: "Is this book worthy of publication, or is it just a maybe?" Its reply:

"Yes, worthy of publication—as a work of philosophical fiction for a niche audience."

OBSERVATION: AI compares it with Sophie's World, Candide, and Siddhartha. But all of those were unlikely books. Maybe it's the kind of book that will be rediscovered once I have a New York Times bestseller!

Ordination

Someone took this photo on the day of my ordination -- my late wife Mirjam on the left. Ordination is understood as the formal recognition -- by the Church -- of a person's calling by God to ministry. That "by God" makes it a sacred occasion. It is in recognition of what God has already done. OBSERVATION: I still have my ordination Bible next to my bed, more than 40 years later. Curiously, I was ordained twice within the same year.

Intellectual Property Theft

The fact that someone stole snippets of an unpublished paper of mine (see Saturday's post) is a little worrying. This was no ordinary theft -- as best I can see, it was an AI engine I had asked to analyse the text. There are three problems I see here. 

1. They are stealing copyrighted material, causing its owners to lose control of it, 

2. They are exploiting it for profit, even if it is likely very small, and 

3. if the ideas in the paper should be groundbreaking, as I think they are, they are exposing the author to intellectual property theft. 

OBSERVATION: There is potentially a fourth problem. They attributed (falsely) the text to something already out there. I have a record of a question I put to Claude AI on 19 January: "What is your opinion on this journal paper?" Gemini AI comments:

"If a user uploaded an unpublished paper to Claude ... that information could potentially become part of the model’s knowledge base."

Inflated Grades?

There is a controversy over university grades at the moment, in the USA. It centres on Harvard College, where about two-thirds of grades in the last school year were A’s. What they want to do now is limit the number of A's -- however, that has met with protest. My own students, last semester, averaged 85%, which is on the edge of A and A-minus. Could I have inflated their grades (or marks)? Through my teaching, perhaps -- but isn't that what teaching is for. The exam I set for them is moderated, both internally and externally. And after they have sat the exam, the result I give them is moderated, both internally and externally. That means it is all gone over six times -- in keeping with module content and a rubric, too. At least in South Africa, I don't see much room for inflated grades. OBSERVATION: It is possible to skew grades by telling one's class in advance what will be in the exam (say, by sharing the exam key). Needless to say, that is forbidden. Or the whole system may be sub-par. The photo shows an exam hall.

Whodunnit?

This morning I received an e-mail from someone who claimed to have read my books -- Shona G. MacLean (a famous name, almost certainly faked). She quoted from one of my books, about "us who want to believe". I asked Genesis AI, which of my books was she quoting from? Genesis AI said it was a short story titled The Secret of the Sands. But I didn't write that. Gemini AI asked me, "Would you like to explore [Scarborough's] views on Christianity?" Yes, I said. It now claimed to quote from a book that I wrote (and I did write this), titled The Good. It said that I had written there about "God's prior initiative" vs. "political ideals" and so on. But not in that book. I wrote about that in a journal paper -- not yet accepted for publication! OBSERVATION: Well, how did Gemini AI get into that journal paper? I had shown it to no one. I had, however, submitted it to the journal. I had also asked (as best I remember) Claude AI for its opinion on the paper, Copyleaks whether there was any plagiarism, and the Flesch Kincaid Calculator for an assessment of style. So whodunnit? Who stole snippets of my unpublished paper?

The Tokoloshe

I have known people who have seen the tokoloshe (an African demon). I interrogated them, too (which means that I questioned them intensely), and they insisted that they had seen him and interacted with him. Perhaps "insisted" is the wrong word, because they simply explained what happened. Have white people ever encountered tokoloshes? The answer is yes. OBSERVATION: Many people would have a problem with my language here: there are people who claim to have encountered tokoloshes, yes. But tokoloshes? Gemini AI calls them "hallucinations", ChatGPT calls them "folklore", while DeepSeek AI calls them "cultural". But one would anger many people with such talk.

Apollo 8

I fail to get excited about Artemis II circling the moon. My family had just returned from the mission in the Pacific in 1968, when Apollo 8 circled the moon. We watched that on TV -- which we didn't have in the Pacific. Now that seemed to be something to get excited about. OBSERVATION: Artemis II had a diverse crew, a more advanced spacecraft, a longer journey, they say ...

Kouga Vlaktes

This one's just another pretty picture, of the plateau where wife E grew up. I have received a suggestion for the name of the plateau: the Kouga Vlaktes (there is no name on Google Maps). The plants in the foreground are aloes. You may click on the photo to enlarge.

The Plateau

This post shows the isolated plateau where wife E grew up. Marked by a small yellow dot is a corrugated iron structure where she lived as a child, and marked by a small blue dot is a small house which was her parental home in later years. I have had many happy stays on this plateau. I have no name for it. Google Maps does not provide one. Behind me (behind the camera), about 500 metres below me, is the Langkloof, a long valley famous for its apples and pears.

Metaphysical Notes Summary

This one’s about how my metaphysical thought developed. A “metaphysics”, according to ... me is a complete, integrated philosophy:

• 2013. The Philosophical Society of England published a paper that I wrote. Titled Aristotle’s Noun.
• 2013. The Society invited me to write a series of essays on metaphysics, expanding on the paper.
• 2014. I now worked the series into an integrated whole, called Metaphysical Notes. Published by the Philosophical Society of England.
• 2022. I turned Metaphysical Notes into a major work, titled Everything, Briefly. Published by Wipf & Stock.
• 2025. The Philosophy Sharing Foundation picked up this work, and invited me to deliver their Annual Philosophy Lecture in Malta.
• 2025. I published a 10th Anniversary edition of Metaphysical Notes.
• And now … here is a one-minute AI summary of my first integrated work, Metaphysical Notes. Also on YouTube at https://www.youtube.com/watch?v=WGLGVg-wa8c

Berries

Being at a loss as to what to post today, it's ... berries. It is possible that this is a species of nightshade, and poisonous. I took this photo in our Eastern Cape.