Football physics: The “impossible” free kick


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In 1997, Brazilian football player Roberto Carlos set up for a 35 meter free kick with no direct line to the goal. Carlos’s shot sent the ball flying wide of the players, but just before going out of bounds it hooked to the left and soared into the net. How did he do it? Erez Garty describes the physics behind one of the most magnificent goals in the history of football.

Watch a video and choose the correct answers.

1. Which physics principal underlies the banana kick?

a) Newton’s first law of motion
b) Ballistic movement
c) The Magnus effect
d) The Maxwell effect

2. What causes the ball to curve?

a) Air pressure
b) Momentum
c) Gravity
d) Friction

3. Who described first the Magnus effect?

a) Roberto Carlos
b) Sir Isaac Newton
c) The ancient Greek
d) Heinrich Gustav Magnus

4. Can a soccer ball be boomeranged back to the player?

a) Yes, but it will take a very precise and strong kick
b) No, because the force needed for the kick is too high
c) Yes, but only in space
d) No, because the ball will swirl in smaller and smaller circles

5. In which of these sports can one not observe the Magnus effect?

a) Baseball
b) Tennis
c) Basketball
d) Skiing

6. Can a banana kick be performed on the moon?

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The Creators
Educator Erez Garty
Director Hector Herrera
Producer Pazit Cahlon
Sound Designer Nick Sewell

How does anesthesia work?


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When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s going on? Steven Zheng explains what we know about the science behind anesthesia.

Watch a video and choose the correct answers.

1) Several common anesthetics bind to this receptor in the brain to cause sedation

a) nACH
b) mACH
c) GABA_A
d) cAMP

2) The above receptor uses this ion gradient in order to cause sedation

a) Chloride (- charge) moving from extracellular to intracellular
b) Chloride (- charge) moving from intracellular to extracellular
c) Sodium (+ charge) moving from extracellular to intracellular
d) Sodium (+ charge) moving from intracellular to extracellular

3) The regional anesthetic, lidocaine, doctors commonly use today was first discovered by a (future) ophthalmology resident when he accidentally tasted this illegal narcotic on his tongue after his friend, Sigmund Freud, gave him a package to help elevate his mood.

a) PCP
b) Marijuana
c) Alcohol
d) Cocaine

4) This is a common opioid used for anesthesia induction before cases:

a) Versed
b) Fentanyl
c) Lidocaine
d) Propofol

5) The following is not a method of taking anesthesia used today:

a) Intravenous
b) Inhaled
c) Hitting someone on the head with a hammer
d) Local

6) Technology has progressed very rapidly these past few decades, and this includes medicine. Can you think of anything that will become the standard of medical practice in the next 10 years? For example, doctors using computers to write notes on patients instead of writing them by hand.

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The Creators
Educator  Steven Zheng
Script Editor  Eleanor Nelsen
Producer  Zedem Media
Director  Michael Kalopedis
Artist  Jeanne Bornet
Sound Designer  Andreas Trachonitis
Animator  Maria Savva
Intern  Andria Pourouti

Underwater astonishments


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David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square’s worth of neon light displays from fish who live in the blackest depths of the ocean.

Watch a video and choose the correct answers.

1) At the time this video was filmed (2007), Gallo estimates what percentage of the Earth’s oceans had been investigated?

a) 0.75%
b) 3%
c) 15%
d) 22%

2) What does cephalopod mean?

a) Calamari
b) Head foot
c) Jointed appendage
d) Deep sea

3) What does the cuttlefish do that is so phenomenal?

a) Walks on land
b) Flips inside out
c) Pulls tentacles in to match surroundings
d) Reveals a third eye

4) What do you expect we will find in the ocean once it is more fully investigated? Detail a plant or an animal (from your imagination) that exhibits some incredible properties not currently known to humanity.

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The Creators
Educator  David Gallo

How much of human history is on the bottom of the ocean?


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Sunken relics, ghostly shipwrecks, and lost cities aren’t just wonders found in fictional adventures. Beneath the ocean’s surface, there are ruins where people once roamed and shipwrecks loaded with artifacts from another time. Let’s dive into the huge underwater museum that is our ocean to see what these artifacts can tell us about humanity.

Watch a video and choose the correct answers.

1) What is the deepest zone in the ocean that humans once walked?

a) 0-15 feet
b) 15-30 feet
c) 50-200 feet
d) 1-5 miles

2) Incredible new discoveries are made at which depth?

a) Along the beach
b) From 15-200 feet
c) Deeper than 200 feet
d) All of the above – some discoveries were right under our noses

3) What is the benefit of shipwrecks deeper than 50 feet to understanding the past, as opposed to those in shallow waters?

a) They are buried under a lot of sand
b) Shallow shipwrecks are often salvaged or looted, both by people in the past and those today, while deeper shipwrecks can be more intact
c) There are more sharks on deeper shipwrecks
d) The deeper the site it is, the older it is

4) Only ships and aircraft are the only types of sites found in the deepest ocean zone. Why?

a) Deep water currents destroy other types of sites
b) All other sites have been found and recovered
c) This depth has always been covered with water during human history so only objects that float down from above are found
d) People physically moved the cities into shallow areas

5) The Viking ships at Roskilde, Denmark, tell us about the event: an invasion that the Vikings sank the ships to barricade a channel. Besides events, what can these ships tell us?

a) How people built their ships in the Viking period
b) Fashion during the Middle Ages
c) Cooking recipes from the Viking period
d) That sharks don’t like wooden shipwrecks

6) Shipwrecks are found at every depth, but sites like sunken cities are only found within specific zones. What processes play a role in the location of different types of archaeological sites in different zone?

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The Creators
Educator   Peter Campbell
Director   Jonny Bursnell, Blind Pig
Script Editor   Emma Bryce
Animator   Jonny Bursnell, Mohamed Orekan
Illustrator   Jonny Bursnell
Sound Designer   Joe Worters
Composer   Joe Worters
Producer   Dan Bennet

Haptography: Digitizing our sense of touch


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Can the sense of touch be harnessed with technology? The field of haptics explores the revolutionary: interactive touch technology. At TEDYouth 2012, Katherine Kuchenbecker discusses how haptics has the potential to change fields as disparate as museums, dentistry, and stroke rehabilitation.

Watch a video about Haptography and choose the correct answers.

1. What are the two main components of the sense of touch?

A) Perception and sensation

B) Rough and smooth

C) Tactile and kinesthetic

D) Taste and smell

2. What is the word used to describe interactive touch technology?

A) Haptics

B) Feelology

C) Sensatics

D)Touchics

3. What’s an example of a place the technology that Kuchenbecker is developing could be used?

A) Online shopping

B) Museum exhibits

C) The dentist’s office

D) All of the above

4. What would change about your life if you lost the sense of touch?

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The Creators
Katherine Kuchenbecker
Speaker

How playing an instrument benefits your brain


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When you listen to music, multiple areas of your brain become engaged and active. But when you actually play an instrument, that activity becomes more like a full-body brain workout. What’s going on? Anita Collins explains the fireworks that go off in musicians’ brains when they play, and examines some of the long-term positive effects of this mental workout.

Watch a video about benefits of playing an instrument and choose the correct answers.

1. Neuroscientists get excited about watching the brain functions of musicians because?

A) Musicians use different parts of their brain to complete tasks
B) Musicians use more of their brain to complete tasks
C) Musicians use more parts of their brain simultaneously to complete tasks
D) Musicians use their brains surprisingly when completing tasks

2. Learning a musical instrument engages which different areas of the brain at the same time?

A) Visual, motor and cerebral cortices
B) Auditory, motor and visual cortices
C) Motor, cerebral and auditory cortices
D) Cerebral, motor and fine motor cortices

3. The bridge between the two brain hemispheres is called?

A) Corpum callum
B) Coopco coolism
C) Capum cullim
D) Corpus callosum

4. Learning a musical instrument teaches your brain how to create, ______ and retrieve memories more effectively?

A) Store
B) Find
C) Make
D) Erase

5. Executive function is a series of interlinked tasks that includes planning, strategizing, and attention to ________.

A) Habits
B) Facts
C) Features
D) Detail

6. Executive function is a complex combination of brain functions that requires analysis of both the cognitive and emotional aspects of a problem or situation. What type of complex problems of situations could you think of that would use your executive function capabilities?

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The Creators

Anita Collins 
Educator

Sharon Colman Graham
Director

Alex Gendler 
Script Editor

Forget shopping. Soon you’ll download your new clothes


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Downloadable, printable clothing may be coming to a closet near you. What started as designer Danit Peleg’s fashion school project turned into a collection of 3D-printed designs that have the strength and flexibility for everyday wear. “Fashion is a very physical thing,” she says. “I wonder what our world will look like when our clothes will be digital.”

Watch a video about future trends in clothing and choose the correct answers.

1. Danit Peleg is wearing a skirt that she 3D printed herself at home. How long did it take her to print it?

A) One week
B) Three days
C) Overnight
D) One month

2. What are some fashion technologies that this speaker has worked with?

A) Silk printing
B) Laser cutting
C) Knitting machines
D) All of the above

3. What were some of the issues Danit initially had with creating 3D printed clothing?

A) It was breakable and scratchy
B) It was difficult to sit in
C) Printers were extremely large and located in labs far away
D) All of the above

4. What is filament?

A) Thread used in creating clothes
B) Tape used to hold up hems on skirts
C) Material used to “feed” the 3D printer
D) A beading material

5. Why was the word “Liberte” embedded into her first 3D printed jacket?

A) She was liberated from the ancient needle and thread
B) She was able to freely visit factories and stores
C) She felt empowered by the freedom of designing and printing fashion from her home
D) She was given the keys to a makers space

6. What were some of the challenges that Danit Peleg came across when trying to 3D print her own fashion?

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7. The speaker describes fashion as a “physical process.” Explain.

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The Creators
Danit Peleg 
Speaker