4 universe

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