I promise this story about microwaves is interesting.
The video explains that the microwave oven was not invented to heat hamsters, but rather it was invented by Percy Spencer after he noticed a radar melted a peanut bar. However, scientist James Lovelock later invented a different type of microwave in the 1950s to safely and humanely reanimate frozen hamsters for medical research. His invention was a smaller, desktop version of a microwave, unlike the large commercial units available at the time. This research explored the possibility of freezing and reanimating larger animals, including humans, but it was ultimately found that the process does not work on bigger creatures.
Key Vocabulary
A substance, typically a liquid, added to water to lower its freezing point, commonly used in engines to prevent freezing in cold temperatures. In the context of the video, it refers to a hypothetical agent that would prevent freezing damage in biological cells.
Examples:
- Before winter, it's essential to check the car's radiator for proper antifreeze levels.
- The plumber recommended adding antifreeze to the outdoor pipes to prevent them from bursting.
- Specialized antifreeze solutions are used in some industrial cooling systems.
The sound a microwave oven makes when it finishes cooking.
Examples:
- The microwave dings, signaling that dinner is ready.
- I waited for the microwave to ding before opening the door.
- The pleasant dings from the kitchen meant breakfast was on its way.
Familiar or recognized by many people; widely known.
Examples:
- The Eiffel Tower is a wellknown landmark in Paris.
- She is a wellknown author in the literary community.
- The company is wellknown for its innovative technology.
An electronic tube that generates microwaves, commonly used in microwave ovens and radar systems.
Examples:
- The faulty magnetron was causing the microwave oven to not heat food properly.
- Radar systems rely on a powerful magnetron to emit radio waves.
- Engineers are constantly working to improve the efficiency of magnetrons.
A colorless, flammable gaseous hydrocarbon, often used in the production of plastics and other chemicals. In the video, it refers to propylene glycol, which is used as antifreeze.
Examples:
- Propylene is a key raw material in the manufacturing of polypropylene plastics.
- The chemical plant produces large quantities of propylene for industrial use.
- Some food additives are derived from propylene.
Of extremely large size; enormous or colossal.
Examples:
- The construction project involved building a gigantic bridge across the river.
- He caught a gigantic fish that weighed over fifty pounds.
- The company unveiled a gigantic new advertising campaign.
A former British coin and monetary unit, equal to twelve pence or one-twentieth of a pound.
Examples:
- In the old days, a loaf of bread might cost a few shillings.
- He found an antique coin purse containing several old shillings.
- The historical novel mentioned transactions in shillings and pence.
A mammal of the order Primates, which includes humans, apes, monkeys, and lemurs, characterized by having five-fingered and five-toed limbs, a large brain, and a highly developed sense of sight.
Examples:
- Many species of primates are facing habitat loss due to deforestation.
- Scientists study the behavior of primates to understand human evolution.
- Zoos often have dedicated enclosures for various types of primates.
Adjusted accurately to a standard or according to a specific scale. In the context of the video, it refers to a microwave that is precisely tuned for specific experimental conditions.
Examples:
- The laboratory equipment was carefully calibrated before the experiment began.
- The mechanic calibrated the engine to ensure optimal performance.
- A precisely calibrated scale is essential for accurate measurements in chemistry.
An electrical component that stores electrical energy in an electric field. In the context of the video, it refers to a high-voltage component in a microwave oven.
Examples:
- The technician warned about the danger of touching the charged capacitor in the old television set.
- A capacitor is a crucial part of many electronic circuits.
- The power supply uses a large capacitor to smooth out voltage fluctuations.
The therapeutic generation of heat in body tissues, especially by high-frequency electric currents, for medical purposes. The video mentions microwave diathermy as a method of reheating frozen animals.
Examples:
- Physical therapists often use diathermy to treat muscle injuries.
- Diathermy can be used to improve blood circulation in affected areas.
- The doctor recommended diathermy for chronic joint pain.
A device or structure that guides waves, such as electromagnetic waves or sound waves, with minimal loss of energy. In the context of the video, it's a component used to direct microwaves.
Examples:
- The antenna system uses a waveguide to transmit signals efficiently.
- Microwave ovens contain a waveguide to direct the microwaves into the cooking cavity.
- Engineers design waveguides to minimize signal degradation.
A substance or device used to remove or prevent the formation of ice. In the video, it refers to propylene glycol, used as an airplane deicer.
Examples:
- The airport crew applied deicer to the wings of the aircraft before takeoff.
- Many windshield wiper fluids contain deicer to prevent freezing.
- The city uses a special deicer on roads during winter storms.
Able to be used; fit or ready for use.
Examples:
- After repairs, the old car was finally usable again.
- The damaged parts were discarded, but the rest of the machinery was still usable.
- The artist transformed discarded materials into a usable piece of furniture.
Utensils with a broad, flat, flexible blade, used for mixing, spreading, and lifting. In the video, hot spatulas were used to try and warm frozen animals.
Examples:
- She used silicone spatulas to scrape every last bit of batter from the bowl.
- The chef expertly flipped the pancakes with two spatulas.
- Different types of spatulas are designed for various kitchen tasks.
To prove that something is false.
Examples:
- The new evidence helped to disprove the old theory.
- Scientists conducted experiments to disprove the hypothesis.
- He presented compelling arguments to disprove the accusations against him.
Not sufficiently strict, severe, or careful; careless or negligent.
Examples:
- The security at the event was too lax, allowing unauthorized entry.
- His lax attitude towards deadlines often caused problems for the team.
- The company faced criticism for its lax safety regulations.
To manage or exploit in a way designed to make a profit; to make something available for sale or profit.
Examples:
- The startup aims to commercialise its innovative new software within the next year.
- Many artists struggle with the decision to commercialise their creative work.
- The company decided not to commercialise the invention, opting to keep it for internal use.
Relating to or using diathermy; generating heat in tissues by high-frequency electric currents. The video uses it in the phrase 'diathermic heating'.
Examples:
- The diathermic treatment helped to alleviate the patient's chronic pain.
- Specialized equipment is required for diathermic procedures.
- The research focused on the effects of diathermic energy on biological samples.
The action of bringing something back to life or consciousness; revival. In the video, it refers to successfully reviving frozen rodents.
Examples:
- The emergency team performed CPR in an attempt at reanimation.
- The scientist's goal was the reanimation of ancient microbial life.
- The process of reanimation after deep hypothermia can be long and complex.