#SciChallenge2017 Without gravity Is the astronauts' life difficult? Yes, they can not spend more time in space without serious illness. Solution: we have developed a gravity space suit Our project presents the way we have come up to make the model of our invention. Following the method of Galileo, we have gone through scientific cognition. Gravitáció nélkül Nehéz az űrhajósok élete? Igen, nem tölthetnek hosszabb időt az űrben, komoly betegségek nélkül. Megoldás: általunk kifejlesztett gravitációs űrruha Projektünk bemutatja azt az utat, amit bejártunk, hogy találmányunk modelljét megalkothassuk. Galilei módszerét követve a tudományos megismerés útján haladtunk végig.

1. WITHOUT GRAVITY
Is the astronauts' life difficult?
Science is only physics, everything else is merely a collection of stamps. (Ernest Rutherford)
We should learn from each other so that we can teach as well as possible. (Loránd
Languages:

2. SOLUTION
GRAVITY SPACE SUIT
• Adjustable strength - spring tensioners
we stretch rubber ropes out :
• Helmet - shoulder;
• Shoulder - waist;
• Arm - waist;
• Waist - shoes.
• So, to maintain a straight body will require muscle strength.
• The spring tensioners are adjustable, with which you can adjust your body weight.
• The shoe adheres magnetically to the walking surface,which will require muscular work.
A spring mechanism for tensioning the rubber threads

3. FOLLOWING THE GALILEI
METHOD
• Galileo was the first to introduce modelling, the abstraction, which in
addition to physics is used by the other natural sciences, and today it is
even used in many social science research methods.
• According to Galileo's approach, it is advisable to look at the
phenomena in simplistic circumstances by means of thought
experiments, which can not be observed in reality. Then we have to take
into account the role of the real effects in the actual course of the
phenomenon.
• Apply Mathematics and then try to experiment.
The theory and the experiment complete each other!
Teaching Natural Sciences (Szerk. Radnóti Katalin – Mozaik Kiadó – Szeged, 2014.)

4. WITHOUT EARTH GRAVITY WHICH IS
HABITUAL FOR OUR BODIES
• Why?
Goals and Grounds to Leave the Earth
• Research and discovery
• Bringing man into space,
the conquest of space
(Space Applications)
• Space station (research work)
• Mars trip
• Researching new energy sources
• Sending robots instead of man
• Find a new home
• If we destroy the Earth
(pollution)
• Use of research results
for healing diseases

5. IF THERE IS NO GRAVITY
• Experience so far:
• Harmful effects on people
(we have already known how to delay them, but we cannot defend them
yet)
• After several weeks in space, the body shows the signs of decay
• Fast muscular dystrophy
• Body muscle mass distribution changes
• Osteoporosis
• Changes in blood circulation
• Solutions to date:
• In the outer space, the muscles need to be burdened in some ways, then
the congestion can be slowed down
• Calcium buildup helps slowing down osteoporosis
• Special clothing (pressure distribution to assist blood pressure)

6. PREVIOUS KNOWLEDGE
• Gravity on Earth
(Newton, Einstein, LIGO) – Our current theoretical knowledge - research work.
• Space trials (space station, spaceship)
• Experiments on the Moon
Mobilizing prior knowledge when observing the world around us
The moon has the same gravitational attraction on the
Earth's path as the force which forces the bodies to fall
to the ground. (the 23 years old Newton)

7. THE CONSEQUENCES OF
GRAVITY
• (1) The bodies fall freely not just on the surface of the Earth,
but on the surface of every planet. The value of their
acceleration depends on the data of the planet,
on the Moon ca. 1,6 m/ s2. (on the Earth 9,8 m/s2)
• (2) Holding force should be exerted on the resting bodies so they
also exert force on the bodies that hold them!
• The weight of the body is called the force it exerts on the other
body that holds it.
(This should be replaced by our gravity space suit! So helping
our muscles work.)

8. MOVEMENT IN THE USUAL
EARTH GRAVITY
• The role of friction:
• Pressing force (role of gravity)
• Surface quality
About 650 muscles make up our muscles, but
for example, about 200 of them are used
during walking.

9. MOVE WITHOUT FRICTION
MAGLEV
The levitating magnet rail called Maglev is a kind of
rail system in which keeping the vehicles on the rail
and
making them move is done by a magnet field with the
help of the magnet levitation instead of the
traditional wheels.
It is possible to achieve more than 500 kms/hour like
in case of planes with this method.
The magnet field is used by the magnet for lifting and
propulsion, so friction is reduced and higher speed is
available.

10. MOVEMENT IN SPACE
• Rocket, Space Boat, Space Station
• On other planets - different gravity forces
• Gravity replacement solutions
(Velcro fastener, magnet, rubber rope)

11. STRUCTURE OF OUR BODY
Kinematics: (body, muscles, joints, energy, movement)
The skeleton and the muscles

12. HUMAN BODY CENTER OF
GRAVITY AND WALKING TEST
Dempster's center of gravity
determination technique
center of
gravity
contact angle
bottom
contact
center
position take-
off
Supporting phase Swinging phase
acceleration
mid-
swing
forward swing

13. OUR EXPERIMENTAL MEASUREMENTS
• Human body size and weight ratio, balance (skeleton, center of gravity),
movement (2x, 3x load),
• Walking (friction) - Velcro-fast, magnetic solution
• Weight measurement - the mass ratio of our body and body parts
(For custom-fit clothing), body weight,
• Measurement of muscle strength (for adjusting the tension of the
rubber ropes)
• Measurements in motion
• Recording measurement results - generalization
We're on giants' shoulders!
" It is important to measure everything
measurable and try to make it measurable, which is
not yet." (Galileo Galilei)

14. BODY PART – BODY WEIGHT RATIO MEASUREMENTS
• Balance sheet operating principle, types
• Weighing scales
• Measuring body parts with scales
• Measurement errors
Good God, I've done wrong for years!
How to measure ourselves correctly …
body weight (kg) 51,10 100% 42,60 100% 47,00 100%
head (kg) 4,00 7.8% 3,50 8.2% 3,80 8.08%
right arm (kg) 2,80 5.6% 2,60 6.1% 2,90 6.1%
left arm (kg) 2,60 5.09% 2,50 5.8% 2,50 5.3%
right leg (kg) 8,70 17.05% 6,90 16.2% 6,80 14.4%
left leg (kg) 8,60 16.8% 6,70 15.7% 6,60 14.04%
body (kg) 24,40 47.8% 20,40 48.0% 24,40 52.1%
Body part weight ratios (measurement, calculation)
Niki Ádám Zsófi

15. GRAVITY SPACE SUIT 1.
• Predictions, hypotheses :
• Is it possible to make a gadget built in space suits which can be used to substitute the effect of
ground gravity on walking muscles?!
• BrainStorming:
• Solutions suggestions and ideas
• Rubber, elastic spring energy - adjustable force
• Spiral spring tensioning devices - adaptive to muscle strength
• Problems encountered:
• Materials suitable for space relations: clothing, tensioners, rubber band, spring
• Setting for weight
• Stretching while walking, tension during sitting
The formulation of a question that is appropriate for the investigation;
formulating predictions and hypothesis

16. GRAVITY SPACE SUIT 2.
• Modelling - small, refinement of the idea, feasibility study
• Building a model
• Making a proportionate human model
• Dress design (design and modelling of structural
and supporting elements)
• Prototype building (problems)
• Selection of materials
• testing
4. Planning the measurement (experimental and control groups);
5. Creating the necessary measuring equipment;
6. Collecting data;
7. Data capture, table design;
8. Evaluation of data or graphic representation;
9. Deduction of conclusions, comparison with the preliminary ideas;
Golden ratio
body: 2 units
arm: 3 units
body+arm: 5 units
height: 8 units

17. PRESENTING OUR MODEL
• Steps to build a model :
• paper box– man model (ratios)
• paper box– rubber band dress
• paper box– magnetic shoes
• Tensioner structure model
• Structure of clothes
• Model making

18. SUMMARY
• Progress Plans
• Making a prototype,
• Measurements with the Prototype
• Design, modelling of spring-loaded, rubber-filled gym,
• MAGLEV Boots or Velcro or Magnetic (benefits, disadvantages))
10.The publication of the results, answering the questions, considering the new knowledge we
got, formulating practical suggestions;
11.Formulating questions that may be suitable for further investigations.

19. IRODALOMJEGYZÉK/ BIBLIOGRAPHY
• Tankönyvek
• Fizika 7 – Mechanika, hőtan (Mozaik Kiadó – Szeged, 2016.)
• Fizika I. – Gulyás János, Honyek Gyula, Markovits Tibor, Szalóki Dezső, Tomcsányi Péter, Varga Antal (Műszaki Kiadó, Budapest
2010.)
• A természettudomány tanítása (Szerk. Radnóti Katalin – Mozaik Kiadó – Szeged, 2014.)
• Az anyagi világ felfedezése – Az én módszertáram – Fizika, Kémia (RAABE Tanácsadó és Kiadó Kft., Budapest)
• Internet
• http://tudasbazis.sulinet.hu/hu/termeszettudomanyok/fizika/fizika-9-evfolyam/a-tomegvonzas/az-altalanos-tomegvonzas-torvenye
• http://tudasbazis.sulinet.hu/hu/termeszettudomanyok/fizika/fizika-7-evfolyam/surlodas/a-surlodasi-ero-nagysaga
• https://hu.wikipedia.org/wiki/Rug%C3%B3
• http://www.tankonyvtar.hu/hu/tartalom/tamop425/2011_0001_524_Biofizika/ch05s02.html
• https://hu.wikipedia.org/wiki/Lebeg%C5%91_m%C3%A1gnesvas%C3%BA
• http://www.puskas.hu/diak_erettsegi/anyagok/Fizika_2007/temak/03_erohatasok_erotorv/temakor.htm
• http://www.tankonyvtar.hu/hu/tartalom/tamop412A/2010-0013_kenesgazdalkodas/a_surlodas_fogalma.html
• http://www.hirosnaptar.hu/index.php?oldal=cikk&cikk=vallomasok__dr__remes_peter_orvos_ezredes
• http://nol.hu/tud-tech/20110122-komoly_gondokat_okozhat_a_gravitacio_hianya-954611

20. KÉSZÍTETTÉK/ CREATED BY
Nikolett Árpási, Ádám Steiner, Zsófia Fáklya
balatom.wordpress.com
Felkészítő tanár / preparatory teacher: Balaton Tamás fizika, informatika tanár / teacher of physics and IT
Kardos István Általános Iskola és Közgazdasági Szakgimnázium, Szigetszentmiklós
2017. május / May, 2017