measuring environmental physics and chemistry by...

Teaching Physics Innovatively,

Budapest, 2015, aug 17.

Lang, Á., Bérczi, Sz., Hudoba Gy.

and the Hunveyor-Husar Team:

Measuring

environmental physics and chemistry

by educational

Hunveyor and Husar space probe models

Szaniszló BércziEötvös University, Institute of physics, Department of Materials Physics,

Cosmic Materials Space Research Group



Introduction

Interesting physics:

more complex description of the processes of the environment.

Our proposal: complexity should be build in the teaching program.

Complexity: formulated in various ways.

Should be introduced to education from simple descriptions of processes through the gradually increasing superposition of the known processes as components of the complex description.



Two disciplinary sources

Two disciplines with

essential complexity:

Environmental science

Space science.

We learn from them.

First step:

form groups of the

processes they apply.



Grouping of the processes

Both environmental and

space science propose

groupings:

processes run parallel.

Environmental science:

processes are streams.

In Space probe:

processes are measuring

technologies.



Rooks on the chesstable Two requests are unified.

The form of it: a relation table.

Relation table = a chesstable with rooks for each column and row.

Two sets of rooks form two subsystem corresponding to the two cardinal actors of the environmental studies

natural streams and

technologies



Processes for a town

Consider a town:

Natural streams to be defendedare: air, water, ground, heat, etc.streams.

Technologies which may destroyenvironmental streams: theproducing and various othertechnologies of the town.

They form a woven system,

Columns correspond to thenatural streams,

Rows correspond to technologies.



Processes for a space probe

Replace town by spaceprobe to be landing onthe Moon.

Task is the same, but

One great difference.

Producing technologiesare replaced bymeasuring technologies

Plus space probe is aminiaturized instrumentcomplex.



Surveyor - Hunveyor In the matrix arrangement

the operations of the procedure of technologies are groupped into one box of the matrix, where technology row crosses the column of natural water stream.

All boxes are measurements.

Measurement is an interaction between a natural stream and a measuring technology.



The Hunveyor-Husar-Hunballon

space probe model system

Beginning of Hunveyor (1997) ... and

Husar (Hungarian University Surface Analyser Rover) (1999) ...

Test-table for Hunveyor (1999).

Later a Hunballon group involved.

Demonstrations by Mathematica program (by S. Kabai) (2005).

Plans of Hunbleweed – Ördögszekér: (roling on its branchings) (2010).



Realizations of Hunveyors



Husar-2, -5, -9 and -11 rovers

H-2 a, b, d, and eHusar

H-5 and

H-9 measure-ments

H-11 Spherical rover (Hungaro-sphere)



Planetary Surface rocks: Husar-9

Identifications of the rock types by their textures.

Measuring magnetic dust transported in the winds (Mars)

In the carpet magnetic cubes are hidden.

Transported dust grains are adhered by magnets and the position of the magnetic cubes becomes visible.



Measuring the

pH and

triggered gases

by the Husar-5

rover

A



pH measuring

experiment Two arms and a pump on the

rover both from LEGO elements.

On the first arm is thewireless camera (it can rotate around 360°)

Second arm: to stretch and place the indicator ribbon to the surface and move it along a distance to contact with the wet soil.

The role of the pump was to pour water on the soil surface.

Front: ultrasonic sensor

(obstacles)

Upper arm).

A camera (right up)

Arm moves indicator ribbon

(rolled). Arm is contacting

the wet surface soil.

Camera observes changes

of indicator ribbon colour.



Episodes of the pH measuring

experiment



Optical-Chemistry Experiment

The main tasks:

Move and fix the lens so that the plane of the lens should be perpendicular to the axis of the incident solar light.

Also task to focus of the lens so that the ray should reach the soil exactly. (operated at any incidence position).

We used to this task 3 motors. 2 motors moves the lens around horizontal axes, and the third one around a vertical one.

Husar-5 instruments built from LEGO elements

Motors and controlls by the NXT “brain” driven by LEGO Mindstorms system.

LEGO set contains a light-sensor, but too heavy for theexperiment

We used a light one photoresistor, and its signal was introduced into the NXT.



Husar-5

soil optical +

chemistry

measurements

Movement: One motor moves the

arm along an arc from the

horizontal about 40-45°-degrees up

and down.

The lens can be rotated around its

symmetry axis. Basic position right

on figure, ( 0° angle) than the

computer program moves it from -

90° to +90° position.



LED spectroscopy



0,00

20,00

40,00

60,00

80,00

100,00

120,00

140,00

muan

yagk

upak

timso

vizk

o

porcu

kor

vatta

feher

lap

liszt

gipsz

hungar

ocell



Husar-2d field trip in Utah

Husar-2d rover in Utahba,

in the MDRS field work.



Hunveyors with meteorology: -4 and -10

H-4 measurements: wind direction and wind speed sensor .

H-10 measurements in Utah: 15 data from meteorological column.



MARS2013 - Morocco





Husar-2 and -8: Husar crews

New strategy: vrew of

small rovers around

Hunveyor base.



Planning, motions, Mathematica

Wolfram

Mathematica

demonstrations

contain several

ones about

Hunveyor-

building, motion

and Luna

space probe

representations



LPSC, EPSC, COSPAR, EGU

Conferences with Hunveyor-Husar works Lunar and Planetary Science Conf. Houston.



LPSC, EPSC, COSPAR, EGU

Hunveyor, Husar, poster and on site presented versions



TWINBALLOON experiment

Székesfehérvár, 08. June 2013





Plans: Hunbleweed Tunbleweed, rolles forward

on its branchings

It can be used on Mars by the winds pushing forward



15 years ago: Test table for Hunveyor



Summary

Summary:

Complexitiy should give a more realistic overview of the processes around us.

Complexity is a source of both joy and innovative teaching of physics.

Complexity of a space probe and its construction should give new form of teaching physics: measurements, processes, technologies, informatics.



Hunveyor groups Hunveyor-1, ELTE Faculty of Sci. Dept Materials Physics.(Sz. Bérczi)

Hunveyor-2 Pécs, Pécs University, Dept Informatics and General Technology (S. Hegyi),

Hunveyor-3 Szombathely, Univ. West Hungary (Zs. Kovács),

Hunveyor-4 Székesfehérvár, Óbuda Univ, Alba Regia Technical Faculty (Gy. Hudoba),

Hunveyor-5 Sopron, Széchenyi High School, (Á. Lang), Husar-5 experiements

Hunveyor-6 Dorog, (Gy. Nyerges),

Hunveyor-7 Pannonhalma, St. Benedict Abbey High Scgool (A. Pintér),

Hunveyor-8 Kecskemét, Technology College GAMF (A. Pásztor),

Hunveyor-9 Tata, Eötvös József High School (Cs. Magyar),

Hunveyor-10 ELTE Faculty of Informatics (Z. Istenes),

Hunveyor-11 Hungarosphere gr. St. Margaret High School (A. Gilyén and P. Szvoboda).

Hunveyor-12 Magyarkanizsa, Vojvodina, Serbia,

Hunveyor-13 VTPatent group (T. Varga and R. Cseh),

Hunveyor-14 Sepsiszentgyörgy (?), Transylvania, Roumania,

Hunveyor-15 Puli group T. Pacher and P. Vizi).

measuring environmental physics and chemistry by...

Documents