A magnet falls slowly through a copper tube because its moving magnetic field creates circular electric currents in the metal, which produce an opposing magnetic field that acts as an electromagnetic brake. [1, 2, 3]
This phenomenon involves a few key steps:
1. Creating Eddy Currents
Moving magnetic field: As the magnet drops, its magnetic field moves along with it.
Swirling electrons: Copper is a non-magnetic metal, but it is an excellent electrical conductor.
The induction effect: The changing magnetic field passing through the walls of the copper tube forces the free electrons in the copper to swirl in circular loops. Scientists call these circular paths eddy currents. [1, 2, 3, 4, 5]
2. Lenz's Law and Resistance
Opposing fields: According to Lenz’s Law (a fundamental rule of electromagnetism), an induced electric current always flows in a direction that opposes the change that created it. [1, 2]
Magnetic braking: The swirling eddy currents turn the copper tube into a temporary electromagnet. This temporary magnetic field pushes back against the falling magnet, creating an upward retarding force that counteracts gravity. [1, 2, 3, 4, 5]
Energy conversion: The kinetic energy of the falling magnet is converted into electrical energy (the eddy currents) and then dissipated as heat in the copper walls. [1, 2]
A non-magnetic object (like an aluminum or copper ball of the same weight) does not have a magnetic field, so it induces no eddy currents and falls straight through at normal speed. [1, 2]
Soldering and Wire Stripping Workshop
This workshop provides instruction on the technical fundamentals of soldering, wire stripping, and assembling Aurora Bears.
Soldering Fundamentals
Ed explained that effective soldering is a chemical bonding process achieved by heating the metal components rather than just dripping molten solder onto them. Heating only the solder can lead to a "cold solder joint," where the connection lacks structural integrity.
Key technical points include:
To increase heat transfer between two cylindrical wires, apply a small amount of solder to create a meniscus at the contact point.
Ensure stability by using blue masking tape to secure wires against a hard surface; floating wires prevent proper heat transfer.
Solder types discussed include rosin core (which aids attachment) and 64/60 leaded solder, noting that lead-free alternatives have higher melting points and may be harder to use.
Wire Stripping Techniques
The instructors demonstrate how to use wire strippers without damaging the internal conductor. Ed emphasized maintaining a perpendicular angle relative to the wire to avoid nicking the metal.
Best practices for wire management:
Avoid repetitive bending or "nicking" near the joint, as this creates weak points that cause wires to break during presentation.
When using strippers, hold them closer to the cutting hole rather than by the handles for better control.
Select an appropriate gauge size; for example, 26 gauge wire requires specific handling to ensure insulation is removed without exposing excessive bare wire or damaging the core.
Assembly Guidance
Participants are instructed on how to assemble their Aurora Bears projects while gaining hands-on experience with previously discussed skills.
Project assembly notes:
For visual optimization, place the red LED in the middle of others because it is naturally dimmer; this allows blue and cream lights to blend more aesthetically through total internal reflection.
When working with materials, use cast acrylic rather than extruded acrylic for better results when laser cutting due to differences in material stress and finish.
A demonstration of a laser cutter is provided, highlighting its ability to create lensing effects on edges for light diffusion.
Soldering Fundamentals and Techniques
Soldering is a chemical bonding process that requires heating the metal itself rather than just dripping molten solder onto it.
Applying solder to cold metal results in a "cold solder joint," which lacks a proper bond and appears smeared.
To improve heat transfer between two cylindrical wires, a small amount of solder should be applied to the contact point first to create a meniscus.
Using blue painter's tape helps stabilize components and provides a hard surface to press against, ensuring efficient heat transfer.
Wire Stripping Best Practices
Wire strippers should be held perpendicular to the wire to avoid nicking or damaging the internal conductor.
Nicking the wire creates weak points that can cause the wire to break during use or presentation.
When using strippers, it is more effective to hold them closer to the cutting hole rather than by the handles for better control.
The thickness of a wire is measured by gauge, where a larger number indicates a smaller diameter wire. 22 gauge solid is a commonly used type of wire for hookup connections.
Solder Types and Safety
Rosin-core solder is preferred over acid-core plumber's solder because the rosin helps the solder adhere to the metal.
60/40 lead/tin solder is commonly used, though users must be aware of potential lead fumes.
Lead-free solder is an alternative but has a higher melting point and can be more difficult to work with.
A flapping wing goose mobile operates as a balanced, double-pendulum mechanical system driven by gravity, inertia, and conservation of momentum. When you pull the bottom string, the mobile translates your vertical force into a rhythmic, lifelike flapping motion.
Here is the breakdown of the physics principles that make it work:
1. Center of Mass and Static Equilibrium
The Body: The main body of the goose acts as the primary pivot. It is hung from the ceiling at its exact center of mass, keeping it perfectly level when at rest.
The Wings: Each wing is a separate lever balanced on a pivot point where it connects to the body. They are weighted (usually slightly heavier toward the wingtips) to rest in a specific neutral position.
2. Lever Systems and Torque
The wings act as Class 1 levers, where the pivot (fulcrum) sits between the effort point and the load.
The Effort: When you pull the center string downward, it pulls inward on the short inner sections of the wings (inside the body pivot).
The Torque: This downward force creates a torque (rotational force) that forces the inner wing segments down, which conversely forces the outer wing segments upward.
3. Potential vs. Kinetic Energy
Pulling the String: You introduce kinetic energy into the system. As the wings flap upward, they gain gravitational potential energy.
Releasing the String: Gravity takes over. The heavy outer wings fall back down, converting that potential energy back into kinetic energy.
4. Coupled Oscillations and Momentum
Because the wings are tethered together and attached to a freely hanging body, the kinetic energy doesn't just stop when the wings fall.
The Bounce: As the wings drop, their downward momentum pushes the inner segments up, which actually pushes the central body slightly downward.
The Dynamic Pivot: The entire mobile begins to bob up and down. This vertical movement of the body creates a coupled oscillation with the wings. The body moves down as the wings go up, and the body moves up as the wings go down, mimicking the exact physics of a real bird shifting its weight in flight.
5. Damping (Why it eventually stops)
The mobile would theoretically flap forever if not for damping. Air resistance (drag) against the wide surface area of the wings and friction at the string joints gradually sap the kinetic energy, turning it into heat and bringing the goose back to its static equilibrium.
Center of Mass and Static Equilibrium
The Body: The main body of the goose acts as the primary pivot. It is hung from the ceiling at its exact center of mass, keeping it perfectly level when at rest.
Jessica leads a workshop for students focused on distinguishing between objective facts and subjective interpretations of experience.
Participant Introductions
The session begins with an introduction of attendees, including:
Grace, a recent graduate focusing on her thesis.
Sarah, an entrepreneur in the wine business.
Jonathan, a former medical engineer and science teacher.
Amrit, a senior in mechanical engineering, now doing a project in Doug Hart's labon AUVs
Jose, a graduate student studying mechatronics in Hugh Herr's lab
John, a post-doc studying optics
Kimberly, Ash Lee, Lydia, Zeno, and Cassia first-year undergraduate students
Karem, a first-year undergraduate student
Jessica introduces herself as an alumna of the institution, having completed two master's degrees there over 14 years.
Cognitive Workshop
Jessica facilitates a group exercise using prompts to help students analyze their internal reactions to external events.
Reflective Questions
Students respond to various "what if" questions designed to trigger intuitive responses:
WHAT IF?
As we walk through life, once we realize that WE have the ability to direct our own success or failure in all phases of our life, the sooner we can bring about the transformations for the better that we desire.
Here's some questions to ask yourself:
What if I am capable of far more than I have allowed myself to believe?
What if the life I want requires me to become a different version of myself?
What if my current habits are quietly creating my future results?
What if the people I spend the most time with are shaping my income, confidence, attitude, and opportunities?
What if I stopped letting fear make my decisions for me?
What if my comfort zone is costing me the success I say I want?
What if I focused less on being impressive and more on being valuable?
What if I stopped waiting for the "right moment" to begin?
What if I treated my health, time, relationships, and reputation as my most important assets?
What if I never took responsibility for the outcomes in my life?
What if I reached the end of my life having never really tried?
What if the relationship I need most is only one conversation away?
Case Study AnalysisJessica shares a personal narrative regarding a February morning involving a nor'easter storm, playing bongos outside, visiting a student center during a migraine, and being escorted by an ambulance to a hospital.
The group discusses potential internal experiences associated with this event:
Subjective Feelings: Anxiety, stress, irritation, numbness, exhaustion, and being judged.
Perceived Payoffs: Finding comfort or seeking release from pressure/noise.
Conceptual Frameworks
The workshop concludes by defining the relationship between different layers of reality through a physical demonstration using folded paper.
Fact vs Interpretation
The discussion emphasizes that while an event (the fact) can be verified through external evidence like camera footage or witness testimony, the personal reaction (the interpretation) is a separate layer of experience. The facilitator warns that problems arise when facts and interpretations collapse into one another through continuous mental loops or reactive behaviors based on perceived payoffs or rewards like security or comfort.
Outline
Workshop Logistics and Setup
Jessica explains that the recording is private and may be shared in a thesis cohort Slack channel for feedback.
The participants begin identifying themselves by name and spelling them out for clarity.
Ed prepares supplies such as paper and writing instruments for the upcoming activity.
Jessica instructs the students to focus on specific questions provided on laminated papers.
Reflecting on Powerful Questions
Students participate in an exercise where they identify a question from a list that catches their eye.
Participants share their chosen questions, which touch on themes of comfort zones, habits, and life priorities.
One student highlights a question about how personal relationships influence income, confidence, attitude, and opportunities.
The group discusses how these questions prompt deep reflection on personal growth and fear.
Reimagining Systems and Leadership
Jessica references Buckminster Fuller and his concept of designing better systems rather than burning down existing ones.
She connects the workshop's theme of reimagining the world to the lineage of leadership programs at MIT.
The discussion touches upon the geodesic dome and "buckyballs" as examples of Fuller's work.
Analyzing Personal Experience and Interpretation
Jessica tells a personal story about experiencing a migraine during a storm and being escorted by an ambulance.
The group brainstorms the emotions and interpretations a person might have during such an event, such as anxiety, stress, or numbness.
They discuss the "payoffs" or rewards of living in a reactive state, including comfort or release of pressure.
The session distinguishes between objective facts—what actually happened—and subjective interpretation.
The Four Layers of Reality
Jessica explains how facts, interpretations, reactions, and payoffs can collapse into one another.
She emphasizes the importance of distinguishing between what happened and the stories people tell themselves.
The workshop uses an accordion-folded piece of paper to physically demonstrate how these layers can collapse.
Jose told about Hugh Herr's 'origin story', becoming interested in mechatronics after a climbing accident, and emphasis on prosthetics being usable and attractive
REGENERATIVE CULTURE LIFESTYLE [Handwritten signature: con Yoshi Pantera]
Regenerative Culture Principles 2025
1. Love & Respect "Love and Respect is the path to the creation of our reality..." Love and respect to all beings from Mother Earth, Stars and Galaxies. Every being and element in our surrounding environment, known and unknown, visible or not visible, deserves love and respect for it. existence. The connection and relationship with other beings helps us become aware and mindful of h all our daily decisions and actions affect the world around us. Example; Practicing a lifestyle where human decisions and actions actually benefit all life forms. Such as deep meditation, healthy eating habits, reducing consumption, starting a garden, - to - starting a permaculture ecovillage, practicing Speciesism, and becoming part of an Animal Liberation movement can impact positively to the non regeneration of all life. "Love and Respect is the path to the creation of our reality..."
2. Regenerative Health "The habits you choose will enhance your evolution..." When loving yourself, you value your health. The quality of energy and the quality of health is essential to be alive, productive and full of joy. Activate your full potential from the essence of your body, mind and soul. From quality nutrition, herbalism, energic cleansing - to - bio-decoding, reprogramming, sacred sexuality, martial arts, meditations, spiritual practices and other forms of energetic frequency movements that enhances human health and well being. "The habits you choose will enhance your evolution..."
3. Initiative and trust "The power of love lies in self trust..." Be confident to take the step forward in life to love yourself first. Trust yourself more than anyone. Love yourself unconditionally. Observe yourself consistently and be kind to yourself. Loving yourself doesn't mean to allow yourself to abuse pleasures. When in community, use your self-trust to activate your inner leadership power to get things done collectively. You don't have to wait for someone to ask you to do something to do it. Become consistent with initiatives and establish a high level of trust with thy-self and with the community. "The power of love lies in self trust..."
4. Self-Sufficiency & Resiliency [Handwritten margin note: never 100%, But try, radically, to take care of your sh*t.] "Nobody is going to take care of your shit, until it's composted..." Each person is encouraged to discover, practice, and depend on thy-self with own personal resources, technics and self-discipline. A self-sufficient individual leads to a self-sufficient community. Radical self-sufficiency implies that you take care of every aspect of your own life & not depend on any person, government or corporation to cover your own basic needs, including your feces. Resiliency, implies for us to be of service for each other, as all of us beings and elements need each other to thrive as One. Thus, becoming non-dependent of anyone, while trusting the community to collectively thrive. "Nobody is going to take care of your shit, until it's composted..."
5. Mutual Care & Responsibility "Anticipate the needs in your surrounding environment, and be of service..." Love communicates through actions. As a community, we take care of each other with unconditional love, when in greatness and when vulnerable. This helps strengthen the community, such as it's health, trust, loyalty and confidence, while still becoming responsible for one-self with respective rols that complete personal and collective tasks. By anticipating the needs of people, places, plants and animals, then love and consciousness expands to all life, fulfilling ones life with joy and satisfaction. Thus, inspiring to continue being of service. "Anticipate the needs in your surrounding environment, and be of service..."
6. Cycles of Life & Zero Waste "Honor all life, create no waste rather leave the space a better place..." Everything in our existence acts in natural cycles and in a symbiotic relationship between all elements in order to live and thrive. When innerstanding holistic systems, such as a healthy ecosystem like the aAmazon Jungle, waste does not exist. Being conscious of the consequences of creating waste and aware of the cycles of life opens communication with spirit realm. The main foundation of spirituality in our community is to live in synchronicity with the cycles of life while learning the multiple functions of every element in nature, to co-exist in harmony with all life. An example of a basic practice is to Rethink on why and how you are creating waste while continuing to Refuse, Reduse, Reuse, Repair, Regift and Recycle. "Honor all life, create no waste rather leave the space a better place..."
7. Radical Self-Expression "Create anything from your authentic self, and express to impress..." Impress thy-self with radical creative expression while inspiring others to act upon the same. Radical self-expression arises from the maximum authenticity of the individual. From spontaneous expression, "shining your own light" as an offering to others - to - sharing poetry, music, dance, paint, designing, building, etc. A community thrives when inspiring each other, to the point you impress yourself and others for your creative achievements. All expressions are authentic from the heart. "Create anything from your authentic self, and express to impress..."
8. Assertive Communication "Feel free to communicate from your heart..." We are committed to communicating consciously, honestly and respectfully. Opening the heart and mind to innerstand each other rather than to offend. Stop and listen carefully. Always be fully present and free from prejudgment. We use 4 Toltec principles: Do not make assumptions. Honor the word. Do not take anything personal. Always do your best. "Feel free to communicate from your heart..." [Handwritten margin note: Eagle heart CORAZONAR Eagle-mind]
9. Self-Regulation & Feedback "Every person is free to take responsibility for their own decisions and actions..." Self-explore and self-evaluate in a consistent manner. Recognize patterns in decisions that may anticipate problems ahead. Navigate your emotions, desires, needs, tendencies, impulses from the heart. Modulate your actions for self growth and to live in harmony with the community, while fulfilling personal and community purpose and welfare. Community feedback helps manifest who you want to be. Corazonar is a methodology that works great to open space for personal and community feedback and self-evaluation. "Every person is free to take responsibility for their own decisions and actions..."
10. Gift Economy - Ayni "Give from the heart without expecting anything in return, and trust..." We share the vision that economy is the flow of love turned into energy that, when valued, is abundant and offers divine gifts. Abundance is everywhere at all times, that when living in coherence, economy thrives naturally within in our lives. The importance of economy is to generate relationships, rather than to obtain monetary gains. Trust inside relationships becomes more valuable over time, thus building a healthy economy. The more trust, the more abundance in the relationships. When trusting in thy-self and in the synchronicity of life, abundance will always prevail. Ayni in indigenous Kichwa language in Ecuador means, Universal Symbiotic Reciprocity. "Give from the heart without expecting anything in return, and trust..."
11. Diverse Inter-Culturality "Accept everyone for who they are, while protecting your heart..." Welcome all beings who feel the desire to participate, relate and live from the energy of Love. Relationships are the core value of our existence. Intercultural diverse relationships help us learn more about thy-inner-self, the reality we live in and the reality we want to create together. Diverse Inter-Culturality is a valuable aspect of humanity for social-cultural evolution. Note: When navigating life, protect yourself and your community from accidentally welcoming new relationships that are not yet ready to resonate with Love. "Accept everyone for who they are, while protecting your heart..."
12. Cooperativism - Minga "Shared effort lightens the manifestation of dreams and brings celebrations..." Minga is a tradition of the tribes of America, where work is done with community effort for a common goal. With this action we try to dilute individualism, create bonds of cooperation, get things done faster and efficiently. Learn, act and feel as an actual community. We use sociocracy and other social design tools to communicate and organize ourselves as a system that everyone feels benefited in the manifestation process of everyone's dreams, plus celebrating all accomplishments. "Shared effort lightens the manifestation of dreams and brings celebrations..."
13. Celebration is Manifestation "Celebrate yourself today with who you were yesterday, and embrace the future with joy & gratefulness" Celebration is an essential energetic frequency for manifestation. The more we embody joy and gratefulness when celebrating, the more we manifest our desires with ease in the present moment. Celebration of all our accomplishments helps acknowledge and honor who we are today. Living the future today with gratitude and celebration, you may experience synchronicities that benefit the vision in the present. "Celebrate yourself today with who you were yesterday, and embrace the future with joy & gratefulness"
Another take on similar concepts:
Skill Number One: Empathy
Not empathy as a soft concept. Empathy as a competitive advantage. AI can recognize emotional cues. It can analyze tone. It can tell you someone is upset. What it cannot do is feel the weight of another person's situation and respond to it in a way that changes what they do next. That's a human thing, and it's becoming rarer.
Skill Number Two: Critical Thinking Under Uncertainty
This is different from the critical thinking schools claim to teach. School "critical thinking" usually means, "Here's a problem with a correct answer. Find it." AI is extraordinarily good at that. Give it a problem with a known solution space, and it will outperform almost any human alive.
Real critical thinking means, "Here's a situation where the data is incomplete, the stakes are real, and no algorithm can tell you what to do. Make a call. Own it. Adapt when it's wrong." Harvard Business School researchers put it plainly: AI can generate probabilities; only humans can decide what's worth the risk.
Skill Number Three: Physical Creativity
Making things with your hands. I know that sounds almost quaint, but hear me out. AI can generate text, images, music, and video at scale. What it cannot do is build something physical, taste it, feel whether it's right, adjust it based on intuition, and hand it to another human who then experiences it in a body.
Skill Number Four: Communication
Real persuasion, not presentation. There is a version of communication schools do teach. It's called the five-paragraph essay and the class presentation. Stand up, cover your points, sit down. AI can do both of those perfectly well, by the way.
Real communication is different. It's the ability to walk into a room where people disagree with you, understand what they actually care about (not what they say they care about), and find the words that move them. Not manipulate them—move them. This is the skill of great negotiators, great leaders, great doctors who get patients to actually change their behavior. It requires empathy, it requires reading the room, it requires knowing when to stop talking. None of these things are on a rubric.
Skill Number Five: Adaptability
The ability to be wrong and keep going. This is the one the school system punishes most systematically. Think about what a grade does. It evaluates a fixed performance at a fixed moment in time. Get it wrong, you lose points. Get it right, you advance. The entire architecture of school teaches children that being wrong is a failure event—something to minimize, hide, or recover from as fast as possible.
Below:Experimental Study Group Ice Cream Social September 22nd
