Join us as we take a deep breath and dive into the intricacies of our respiratory system, explore the iconic history of the Hollywood sign, and wander through the charming streets of Seville, Spain.

Grab your shades because it's going to be a sunny day.

Virtual Field Trip

Inside The Human Body

Day 4: The Respiratory System and Environmental Impact

Our respiratory system is a marvel of nature, a complex network designed to keep us alive and breathing. It's a two-way street, bringing in oxygen from the environment and expelling carbon dioxide from our bodies. This system, which includes our nose, throat, windpipe, and lungs, is not just about breathing. It also helps regulate the temperature and moisture of our bodies and protects us from harmful substances in the air.


Fun Facts

Incredible Capacity

The total length of the airways running through your lungs is 1,500 miles, which is about the distance from New York to Miami!

Powerful Lungs

An adult at rest breathes about 12 to 20 times per minute. Over the course of a day, that adds up to 17,000-30,000 breaths per day — or more!

Oxygen Delivery

Your body needs a constant supply of oxygen. Every minute, your respiratory system takes in about 13 pints of air. It's then transported around your body to every cell and tissue, keeping you alive and well.

Human Lungs Hologram

Skip the story and put a pair of breathing lungs on your desk.

Launch 4D Hologram
Breathe Easy: The Respiratory System
Surrender to the ebb and flow of breath, the silent waltz that infuses our life with its most vital element. Grasp the miraculous process that extracts life from thin air, a testimony to nature’s brilliant design.

Today In History

July 13th, 1923

The Hollywood Sign was officially dedicated in the hills above Los Angeles. It originally read "Hollywoodland" and was an advertisement for a real estate development. The last 4 letters were removed in 1949.

A photo of the Hollywoodland sign in a December 1923 newspaper article Los Angeles Evening Express via

Fun Facts

Original Form

The sign originally read "Hollywoodland" and was illuminated by 4,000 light bulbs. The "land" part of the sign was removed in 1949 to reflect the district, not the housing development.

Temporary Installation

The Hollywood sign was initially installed as a temporary advertisement for a local real estate development in 1923. It was only intended to last a year and a half, but it became so iconic that it was left up.

Restoration Efforts

In the 1970s, the sign had severely deteriorated and was in desperate need of repair. Playboy founder Hugh Hefner led a public campaign to restore the sign and raised enough money to replace each letter. Each donor "adopted" a letter, contributing $27,777 for their chosen letter's restoration.

The World Tour

Seville, Spain

Seville, Spain

Welcome to Seville, Spain! Known for its rich history, stunning architecture, and vibrant culture, Seville is a city that captivates the hearts of all who visit. From the intricate designs of the Alcázar palace to the lively flamenco dancing in the Triana district, Seville is a city that is alive with color and rhythm. Whether you're exploring the narrow streets of the Santa Cruz quarter or enjoying a traditional tapas meal, Seville offers a unique blend of the past and present that is sure to enchant.


3 Fun Facts

Home to the World's Largest Gothic Cathedral

Seville is known for its Cathedral of Saint Mary of the See, which is the largest Gothic cathedral in the world. It's also the third-largest church in the world.

Famous for Flamenco

Seville is considered the birthplace of Flamenco, a passionate and expressive dance form that is a significant part of Spanish culture. The city hosts numerous Flamenco shows and has a Flamenco museum.

Setting for Famous Operas

Seville has been the setting for numerous famous operas, including "The Barber of Seville" by Rossini, "Don Giovanni" by Mozart, and "Carmen" by Bizet. The city's picturesque streets and plazas have inspired many artists and composers.

Seville, Spain
Immerse yourself in the passionate flamenco culture, iconic bullfighting traditions, and Moorish architectural marvels of Seville. Its lively festivals and mouth-watering tapas scene make it a cultural feast.

Till Tomorrow,

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