4 universe
TRANSCRIPT
Welcome
Dr. Lakshman GamlathDirectorNational Institute of Health Sciences Kalutara
úYajfha wfma ;ek
Dr. Lakshman Gamlath
Director
National Institute of Health Sciences
Kalutara
Distance to a bunch of leaves, in the garden
100
1 meter
Dr. Lakshman Gamlath, National Institute of Health Sciences
Start our trip upwards ..
We could see the foliage.
101
10 meters
Dr. Lakshman Gamlath, National Institute of Health Sciences
At this distance we can see the limits of the forest and the edifications
102
100 meters
Dr. Lakshman Gamlath, National Institute of Health Sciences
We will pass from meters to kilometers..
Now it is possible to jump with a parachute ...
103
1 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
The city could be observed but we really can not see the houses
104
10 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
At this height, the state of Flórida - USA, can be seen..
105
100 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
Typical sight from a satellite
106
1.000 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
The north hemisphere of Earth, and part of South America
107
10.000 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
The Earth starts looking small...
108
100.000 km
Dr. Lakshman Gamlath, National Institute of Health Sciences
The Earth and the Moon’s órbit in white....
109
1 millón de km
Dr. Lakshman Gamlath, National Institute of Health Sciences
Part of the Earth’s Orbit in blue
1010
10 Millons km
Dr. Lakshman Gamlath, National Institute of Health Sciences
1011
100 millons km
Orbits of: Venus and Earth...
Dr. Lakshman Gamlath, National Institute of Health Sciences
Orbits of: Mercury, Venus, Earth, Mars and Jupiter.
1012
1 billón de km
Dr. Lakshman Gamlath, National Institute of Health Sciences
At this height of our trip, we could observe the Solar System and the orbits of the planets
1013
10 billons km
Dr. Lakshman Gamlath, National Institute of Health Sciences
Solar system
Distance
• Mercury 70 million km
• Earth 150 million km
• Pluto 5906 million km (250 yrs to go around sun)
• Speed of light 30,000,000 km/second
• Light year 9,460,730,472,580 km (Ten trillion)
• Eight minutes to reach the earth
Galaxies
Orien armLocal fluffGaulden belt
1014
100 Billons km
The Solar System starts looking small...
The Sun now is a small star in the middle of thousands of stars...
1015
1 trillon km
At one light-year the little Sun star is very small
1016
1 light-year
Here we will see nothing in the infinity....
1017
10 light-year
“Nothing” Only stars and Nebulae...
1018
100 light-years
1019
1,000 light-years
At this distance we started travelling the Milky Way, our galaxy.
We continued our travel inside the Via-Láctea.
1020
10,000 light-years
We started reaching the periphery of the Via-Láctea
1021
100,000 light-years
At this tremendous distance we could see all the Via-Láctea & other galáxies too...
1022
1 million light-years
Address
Sri LankaEarthSolar systemLocal fluffGulden beltOren armMilky Way galaxy
From this distance, all the galaxies look small with inmense empty spaces in between.
1023 - 10 million light-years
Extent?
• Where is the end?
• Extent? How big is universe?
• Can we ever find the end ?
• Can we explore the whole universe one day?
Scientific view
Religious view
Sun
• 1. Core2. Radiative zone3. Convective zone4. Photosphere5. Chromosphere6. Corona7. Sunspot8. Granules9. Prominence
Our Sun with its atmosphere
Earth
PlutoMars Mercury
isl=re
w.yre
Earth Pluto
n%yiam;s
Sun
Earth
Pluto
BEYOND OUR SUN,
THERE IS A VAST UNIVERSE
Our Sunl Sirius
Arturus
Jupiter at 1 pixel at the point of the arrow.
The Earth is not visible at this scale.
Antares is the 15th most brilliant star in the night sky.It is located at more then 1000 light years.
Sun – 1 pixel
Beetlejuice
wms fldpspr fmdäo@
Earth
• Earth is 5 billion yrs. old
• Radius 6371 km (Sun 14 mln. Km)
• Rotational speed 1500km/hr
• Orbital speed 108000 km/hr (150,000,000 km)
• 71% of the surface is covered with water
• Surface consists of 8 tectonic plates
The Earth with clouds
And then the Sunrise ..
NIGHT LIGHTS
8 tectonic plates
These plates continuously more in out over or under each other
southwest Iceland the boundary between the Eurasian and North American continental
tectonic plates.
• Great Hanshin earthquake, or Kobe earthquake
• 8000 people died
• January 17, 1995, at 05:46
1995 January 17, at 05:46am
4okm
2400km
2250km
1300 km
We are sandwiched between hot sun and hot Earth
History of the EarthEarth is 4.5 billion years old
• Life started 4 billion years ago
• 500 million years ago
• 250 million years ago
• 150million years ago
Homo Habilis 3million years ago
• Homo Erectus 2 million years ago
Neanderthals 200000 years ago
• Could Hunt
• Made clothes
• Could speak
• Ape like
Homo sapiens 100000 years ago
• Started farming 10,000 years ago
Population Growth
World population
0
1000
2000
3000
4000
5000
6000
7000
1 2 3 4 5 6
Year
Nu
mb
er
Series1
Year No. mln.
1750 791
1800 978
1850 1262
1900 1650
1950 2521
1999 5978
Life will last only 1.5 bln years more
We are sandwiched between hot sun and hot Earth
wms fldpspr mqxÑo
fld;rus wúksYaÑ;o
We are all in this little blue point.
All our wars… hqoaO
All our problems... m%YaK
All our greatnessand misery….f,dl=fmdälus
All our technology, our art, our advances… ;dÌKh
All our civilizations,all our wildlife and flora...jki;=ka
All races, religions… wd.us
All governments, countries and states... rgj,a
All our love… and hate… wdorh lreKdj ffjrh
Seven billions souls …
This is your planet.
How long….
Thank you
World war